{"id":146277,"date":"2017-06-14T23:05:21","date_gmt":"2017-06-14T21:05:21","guid":{"rendered":"https:\/\/planted-box.com\/blog\/uncategorized\/co2-systeem-aquarium\/"},"modified":"2025-04-29T12:03:40","modified_gmt":"2025-04-29T10:03:40","slug":"co2-system-aquarium","status":"publish","type":"post","link":"https:\/\/planted-box.com\/en\/blog\/co2-systems\/co2-system-aquarium\/","title":{"rendered":"CO2 system aquarium: a few tips to make the right choice"},"content":{"rendered":"<p>Have you seen them too? Those gorgeous tanks full of lush plants, grassy carpets, bright red colors&#8230; <strong>What\u2019s their secret?<\/strong><\/p>\n<p>Good CO2. Your tank lives or dies by the amount of CO2 in your aquarium for your plants. <strong>But adding CO2 is tricky<\/strong>.<\/p>\n<p>You can\u2019t really see it, you don\u2019t know exactly how much you\u2019re adding&#8230; Luckily, a solid CO2 system aquarium setup can get you going in the right direction. In this post, I\u2019ll walk you through what to look out for and which CO2 aquarium setup fits your tank size. Got questions? Feel free to send me a <a href=\"https:\/\/planted-box.com\/en\/contact-me\/\">message<\/a>!<\/p>\n<h2>Does your aquarium really need a CO2 system for fish tank?<\/h2>\n<p>Sure, you can <a href=\"http:\/\/www.aquascaping-blog.com\/169\/aquarium-zonder-co2\" target=\"_blank\" rel=\"noopener noreferrer\">run a tank without CO2<\/a> and still keep it healthy, but your plant choices will be more limited.<\/p>\n<p><strong>Want a lush carpet, a beautiful patch of background plants, bold colors? <\/strong><strong style=\"font-size: 1rem;\">Then yeah, I\u2019d definitely recommend a CO2 system for fish tank<\/strong><span style=\"font-size: 1rem;\">. <\/span><span style=\"font-size: 1rem;\">Most of those plants need stronger lighting. More light means faster, more compact growth\u2014but it also means more nutrients (including CO2) are needed. <\/span>If your CO2 levels aren\u2019t in sync with that brighter light, you\u2019ll end up with <a href=\"https:\/\/planted-box.com\/en\/blog\/algae\/fight-prevent-thread-algae\/\">thread algae<\/a> and beard algae. And it\u2019s not just algae\u2014your plants will start showing signs of stress:<\/p>\n<p><!--more Continue reading--><\/p>\n<ul>\n<li>That fresh green color fades into a dull mess<\/li>\n<li>Leaves on your aquarium plants grow all weird<\/li>\n<li>Leaves get holes or stay tiny<\/li>\n<li>Your plants stretch towards the light like crazy<\/li>\n<\/ul>\n<figure id=\"attachment_6250\" aria-describedby=\"caption-attachment-6250\" style=\"width: 596px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-6250\" src=\"https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/Aquarium-met-CO2-systeem.jpg\" alt=\"CO2 system aquarium\" width=\"596\" height=\"302\" srcset=\"https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/Aquarium-met-CO2-systeem.jpg 596w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/Aquarium-met-CO2-systeem-470x238.jpg 470w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/Aquarium-met-CO2-systeem-50x25.jpg 50w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/Aquarium-met-CO2-systeem-300x152.jpg 300w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/Aquarium-met-CO2-systeem-125x63.jpg 125w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/Aquarium-met-CO2-systeem-75x38.jpg 75w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/Aquarium-met-CO2-systeem-150x76.jpg 150w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/Aquarium-met-CO2-systeem-110x56.jpg 110w\" sizes=\"auto, (max-width: 596px) 100vw, 596px\" \/><figcaption id=\"caption-attachment-6250\" class=\"wp-caption-text\">Takashi Amano used CO2 in all his setups<\/figcaption><\/figure>\n<p>Unless you\u2019re happy with a super basic setup full of <a href=\"https:\/\/planted-box.com\/en\/blog\/aquarium-plants\/easy-aquarium-plants-beginners\/\">slow growers<\/a> and low light, I really recommend investing in a proper CO2 system for fish tank.<\/p>\n<h2>What makes a good CO2 aquarium setup?<\/h2>\n<p>Alright, so you\u2019re going for it\u2014a good CO2 kit for aquarium plants. But which one is best for <em>your<\/em> tank? Not all CO2 aquarium setups are created equal. Here\u2019s my breakdown of what\u2019s essential and what\u2019s just nice to have.<\/p>\n<h3><strong>Must-haves<\/strong><\/h3>\n<ul>\n<li style=\"padding-bottom: 16px;\"><strong>Needle valve<\/strong>: this is the little knob that controls how many CO2 bubbles you\u2019re injecting per second. Super important\u2014you want full control over how much CO2 goes into your aquarium. Don\u2019t skimp here\u2014cheap needle valves make it hard to dial things in, and that\u2019s risky!\n<p><figure id=\"attachment_6240\" aria-describedby=\"caption-attachment-6240\" style=\"width: 373px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-6240\" src=\"https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/Naaldventiel-aquarium.jpg\" alt=\"Needle valve aquarium\" width=\"373\" height=\"279\" srcset=\"https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/Naaldventiel-aquarium.jpg 444w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/Naaldventiel-aquarium-50x37.jpg 50w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/Naaldventiel-aquarium-270x203.jpg 270w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/Naaldventiel-aquarium-300x224.jpg 300w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/Naaldventiel-aquarium-125x93.jpg 125w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/Naaldventiel-aquarium-75x56.jpg 75w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/Naaldventiel-aquarium-150x112.jpg 150w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/Naaldventiel-aquarium-110x82.jpg 110w\" sizes=\"auto, (max-width: 373px) 100vw, 373px\" \/><figcaption id=\"caption-attachment-6240\" class=\"wp-caption-text\">SMC needle valves are awesome.<\/figcaption><\/figure><\/li>\n<li style=\"padding-bottom: 16px;\"><strong>A <a href=\"https:\/\/planted-box.com\/en\/product\/co2-regulator\/\">CO2 regulator for fish tank<\/a><\/strong>: this lets you lower the pressure from the CO2 tank to the right level. The aquarium regulator screws right onto your cylinder and usually has a big knob or lever on the front.<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-80264 \" src=\"https:\/\/planted-box.com\/wp-content\/uploads\/2019\/11\/Drukregelaar-aquarium.png\" alt=\"Drukregelaar aquarium\" width=\"597\" height=\"383\" srcset=\"https:\/\/planted-box.com\/wp-content\/uploads\/2019\/11\/Drukregelaar-aquarium.png 1620w, https:\/\/planted-box.com\/wp-content\/uploads\/2019\/11\/Drukregelaar-aquarium-470x302.png 470w, https:\/\/planted-box.com\/wp-content\/uploads\/2019\/11\/Drukregelaar-aquarium-300x193.png 300w, https:\/\/planted-box.com\/wp-content\/uploads\/2019\/11\/Drukregelaar-aquarium-1024x657.png 1024w, https:\/\/planted-box.com\/wp-content\/uploads\/2019\/11\/Drukregelaar-aquarium-768x493.png 768w, https:\/\/planted-box.com\/wp-content\/uploads\/2019\/11\/Drukregelaar-aquarium-1536x986.png 1536w\" sizes=\"auto, (max-width: 597px) 100vw, 597px\" \/><\/li>\n<\/ul>\n<h3><strong>Nice-to-haves<\/strong><\/h3>\n<p>These parts are technically optional, but honestly\u2014they\u2019ll make your life a lot easier.<\/p>\n<ul>\n<li style=\"padding-bottom: 16px;\"><strong>Bubble counter<\/strong>: unless you love the idea of manually counting bubbles for fun, just get one. Depending on the model, you either screw it straight onto the needle valve or attach it to the CO2 tubing. BTW, if you\u2019re not sure how much CO2 your aquarium needs, check this article: <a href=\"https:\/\/planted-box.com\/en\/blog\/co2-systems\/how-much-co2-aquarium\/\">how much CO2 in aquarium<\/a>.\n<p><figure id=\"attachment_6243\" aria-describedby=\"caption-attachment-6243\" style=\"width: 459px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-6243\" src=\"https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/CO2-bellenteller.jpg\" alt=\"CO2 bubble counter aquarium\" width=\"459\" height=\"322\" srcset=\"https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/CO2-bellenteller.jpg 1000w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/CO2-bellenteller-470x329.jpg 470w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/CO2-bellenteller-50x35.jpg 50w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/CO2-bellenteller-300x210.jpg 300w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/CO2-bellenteller-768x538.jpg 768w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/CO2-bellenteller-125x88.jpg 125w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/CO2-bellenteller-75x53.jpg 75w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/CO2-bellenteller-150x105.jpg 150w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/CO2-bellenteller-110x77.jpg 110w\" sizes=\"auto, (max-width: 459px) 100vw, 459px\" \/><figcaption id=\"caption-attachment-6243\" class=\"wp-caption-text\">A glass bubble counter fits perfectly in sleek aquascapes.<\/figcaption><\/figure><\/li>\n<li style=\"padding-bottom: 16px;\"><a href=\"https:\/\/planted-box.com\/en\/product\/co2-solenoid-valve\/\"><strong>Solenoid valve<\/strong><\/a>: this is the solution to avoid adding CO2 at night. Plants don\u2019t use CO2 when it\u2019s dark, they actually make it\u2014so no waste, no risk of gassing your fish.<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-80913 \" src=\"https:\/\/planted-box.com\/wp-content\/uploads\/2019\/11\/magneetventiel-aquarium.png\" alt=\"magneetventiel aquarium\" width=\"608\" height=\"390\" srcset=\"https:\/\/planted-box.com\/wp-content\/uploads\/2019\/11\/magneetventiel-aquarium.png 1620w, https:\/\/planted-box.com\/wp-content\/uploads\/2019\/11\/magneetventiel-aquarium-470x302.png 470w, https:\/\/planted-box.com\/wp-content\/uploads\/2019\/11\/magneetventiel-aquarium-300x193.png 300w, https:\/\/planted-box.com\/wp-content\/uploads\/2019\/11\/magneetventiel-aquarium-1024x657.png 1024w, https:\/\/planted-box.com\/wp-content\/uploads\/2019\/11\/magneetventiel-aquarium-768x493.png 768w, https:\/\/planted-box.com\/wp-content\/uploads\/2019\/11\/magneetventiel-aquarium-1536x986.png 1536w\" sizes=\"auto, (max-width: 608px) 100vw, 608px\" \/><\/li>\n<li style=\"padding-bottom: 16px;\"><strong>Pressure gauges (manometers)<\/strong>: classic advice\u2014\u201cyou can\u2019t manage what you can\u2019t measure.\u201d It\u2019s really handy to know how much CO2 is left and what your working pressure is. Two gauges = full control.<\/li>\n<\/ul>\n<p>You\u2019ll also need something to dissolve the CO2: <strong>a diffuser, reactor, atomizer, or flipper<\/strong>. The best one depends mostly on your tank size.<\/p>\n<p>Let\u2019s keep going!<\/p>\n<h2>Small tank: which CO2 aquarium setup is best?<\/h2>\n<p>Straight to the point: in tanks under 100 liters, you\u2019ve got a lot of options.<\/p>\n<ul>\n<li>A <a href=\"https:\/\/planted-box.com\/en\/product\/cup-co2-diffuser\/\">CO2 diffuser<\/a><\/li>\n<li>An <a href=\"https:\/\/planted-box.com\/en\/product\/external-co2-atomizer\/\">external CO2 atomizer<\/a><\/li>\n<li>A\u00a0<a href=\"https:\/\/planted-box.com\/product\/co2-reactor\/\">CO2 reactor<\/a><\/li>\n<li>A flipper or ladder<\/li>\n<li>&#8230;<\/li>\n<\/ul>\n<p>So what\u2019s the difference?<\/p>\n<h3><strong>The CO2 diffuser<\/strong><\/h3>\n<p><strong>A diffuser looks great and makes super tiny CO2 bubbles<\/strong> (okay, depends on taste\u2014but I love it). These bubbles drift around the tank, cling to plant leaves, and get absorbed. Since most <a href=\"https:\/\/planted-box.com\/en\/product\/cup-co2-diffuser\/\">diffusers<\/a> are glass, you\u2019ll need to clean them often. That\u2019s a must if you want max performance and no clogs. The good news? Cleaning is quick during a <a href=\"https:\/\/planted-box.com\/en\/blog\/startup-maintenance\/aquarium-water-changes-tips\/\">water change<\/a>.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-12599\" src=\"https:\/\/planted-box.com\/wp-content\/uploads\/2014\/03\/regular-diffuser-aquarium.jpg\" alt=\"|\" width=\"467\" height=\"382\" srcset=\"https:\/\/planted-box.com\/wp-content\/uploads\/2014\/03\/regular-diffuser-aquarium.jpg 1270w, https:\/\/planted-box.com\/wp-content\/uploads\/2014\/03\/regular-diffuser-aquarium-470x385.jpg 470w, https:\/\/planted-box.com\/wp-content\/uploads\/2014\/03\/regular-diffuser-aquarium-300x246.jpg 300w, https:\/\/planted-box.com\/wp-content\/uploads\/2014\/03\/regular-diffuser-aquarium-768x629.jpg 768w, https:\/\/planted-box.com\/wp-content\/uploads\/2014\/03\/regular-diffuser-aquarium-1024x839.jpg 1024w\" sizes=\"auto, (max-width: 467px) 100vw, 467px\" \/><\/p>\n<p>Another thing: you\u2019ll need <a href=\"https:\/\/planted-box.com\/en\/blog\/startup-maintenance\/water-circulation-aquarium\/\">decent water circulation<\/a> or the bubbles won\u2019t get far. Want more info about diffusers? <a href=\"https:\/\/planted-box.com\/blog\/co2-bemesting\/co2-diffuser-gids\/\">Check out my full guide here<\/a>.<\/p>\n<h3><strong>The CO2 atomizer<\/strong><\/h3>\n<p>The <strong>atomizer makes even finer bubbles than a diffuser<\/strong>\u2014it\u2019s more like a mist. That means it\u2019s super efficient. Bonus: you hook the <a href=\"https:\/\/planted-box.com\/en\/product\/external-co2-atomizer\/\">atomizer<\/a> to the outflow of your external filter, so the mist spreads better and you don\u2019t even see the unit.<\/p>\n<p>Downside: your CO2 regulator needs to handle 2\u20132.5 bar pressure, and yes, it needs regular cleaning too.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-12615\" src=\"https:\/\/planted-box.com\/wp-content\/uploads\/2019\/04\/Pro-Atomizer-aquarium-1.jpg\" alt=\"|\" width=\"456\" height=\"373\" srcset=\"https:\/\/planted-box.com\/wp-content\/uploads\/2019\/04\/Pro-Atomizer-aquarium-1.jpg 1270w, https:\/\/planted-box.com\/wp-content\/uploads\/2019\/04\/Pro-Atomizer-aquarium-1-470x385.jpg 470w, https:\/\/planted-box.com\/wp-content\/uploads\/2019\/04\/Pro-Atomizer-aquarium-1-300x246.jpg 300w, https:\/\/planted-box.com\/wp-content\/uploads\/2019\/04\/Pro-Atomizer-aquarium-1-768x629.jpg 768w, https:\/\/planted-box.com\/wp-content\/uploads\/2019\/04\/Pro-Atomizer-aquarium-1-1024x839.jpg 1024w\" sizes=\"auto, (max-width: 456px) 100vw, 456px\" \/><\/p>\n<h3><strong>The \u201cflipper\u201d or CO2 ladder<\/strong><\/h3>\n<p>This one\u2019s totally \u201cold school\u201d\u2014<strong>simple and cheap<\/strong>. But also the least efficient. CO2 ladders make big bubbles that often just float to the surface. Wasteful!<\/p>\n<p>Here\u2019s a tip: place your flipper right in the current to help dissolve the bubbles.<\/p>\n<figure id=\"attachment_6236\" aria-describedby=\"caption-attachment-6236\" style=\"width: 447px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-6236\" src=\"https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/CO2-flipper-aquarium.jpg\" alt=\"CO2 flipper aquarium\" width=\"447\" height=\"294\" srcset=\"https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/CO2-flipper-aquarium.jpg 447w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/CO2-flipper-aquarium-50x33.jpg 50w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/CO2-flipper-aquarium-300x197.jpg 300w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/CO2-flipper-aquarium-125x82.jpg 125w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/CO2-flipper-aquarium-75x49.jpg 75w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/CO2-flipper-aquarium-150x99.jpg 150w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/CO2-flipper-aquarium-110x72.jpg 110w\" sizes=\"auto, (max-width: 447px) 100vw, 447px\" \/><figcaption id=\"caption-attachment-6236\" class=\"wp-caption-text\">The flipper: not the most efficient option!<\/figcaption><\/figure>\n<p>Not my fave\u2014but if it came with your kit, sure, give it a go. Eventually, you might want something better.<\/p>\n<h3><strong>The CO2 reactor<\/strong><\/h3>\n<p>The CO2 reactor is super popular\u2014and for good reason. <strong>It\u2019s crazy efficient<\/strong>. It\u2019s a tube filled with media that you install between your filter hoses (or in the tank if you\u2019re using <a href=\"https:\/\/planted-box.com\/product\/co2-reactor\/\">my version<\/a>). It dissolves CO2 so well you can barely see the bubbles.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-12546\" src=\"https:\/\/planted-box.com\/wp-content\/uploads\/2014\/01\/co2-reactor-aquarium.png\" alt=\"co2 reactor aquarium\" width=\"450\" height=\"289\" srcset=\"https:\/\/planted-box.com\/wp-content\/uploads\/2014\/01\/co2-reactor-aquarium.png 1620w, https:\/\/planted-box.com\/wp-content\/uploads\/2014\/01\/co2-reactor-aquarium-470x302.png 470w, https:\/\/planted-box.com\/wp-content\/uploads\/2014\/01\/co2-reactor-aquarium-300x193.png 300w, https:\/\/planted-box.com\/wp-content\/uploads\/2014\/01\/co2-reactor-aquarium-768x493.png 768w, https:\/\/planted-box.com\/wp-content\/uploads\/2014\/01\/co2-reactor-aquarium-1024x657.png 1024w\" sizes=\"auto, (max-width: 450px) 100vw, 450px\" \/><\/p>\n<p>Only catch: it usually slows your filter, so you might need a second one or a pump. <strong>And this is super important<\/strong>: use a CO2 regulator for fish tank with a good solenoid and precision needle valve. Since it\u2019s so efficient, it\u2019s easy to add too much CO2\u2014and that\u2019s a risk!<\/p>\n<h2>Large tank: which CO2 aquarium setup is best?<\/h2>\n<p>So for a smaller tank, almost anything works. But for a large aquarium (100+ liters)?<\/p>\n<p><strong>I recommend a CO2 reactor.<\/strong><\/p>\n<p>It\u2019s efficient when set up right. Yes, it slows your filter a bit, but in a big tank that\u2019s easy to fix with an extra pump\u2014or maybe your filter\u2019s already strong enough! <strong>The nice thing about a CO2 reactor is you don\u2019t see it<\/strong> (it\u2019s tucked in the cabinet) and it barely needs maintenance. That frees you up to focus on your aquascape.<\/p>\n<p>Of course, a diffuser or atomizer works too (you\u2019ll see them in tons of gorgeous Asian tanks), but you\u2019ll need to clean them more often.<\/p>\n<p><a href=\"https:\/\/planted-box.com\/en\/product\/complete-aquarium-co2-kit\/\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-138011\" src=\"https:\/\/planted-box.com\/wp-content\/uploads\/2023\/12\/Complete-CO2-set-NL.jpg\" alt=\"|\" width=\"1080\" height=\"1080\" srcset=\"https:\/\/planted-box.com\/wp-content\/uploads\/2023\/12\/Complete-CO2-set-NL.jpg 1080w, https:\/\/planted-box.com\/wp-content\/uploads\/2023\/12\/Complete-CO2-set-NL-300x300.jpg 300w, https:\/\/planted-box.com\/wp-content\/uploads\/2023\/12\/Complete-CO2-set-NL-1024x1024.jpg 1024w, https:\/\/planted-box.com\/wp-content\/uploads\/2023\/12\/Complete-CO2-set-NL-150x150.jpg 150w, https:\/\/planted-box.com\/wp-content\/uploads\/2023\/12\/Complete-CO2-set-NL-768x768.jpg 768w, https:\/\/planted-box.com\/wp-content\/uploads\/2023\/12\/Complete-CO2-set-NL-380x380.jpg 380w, https:\/\/planted-box.com\/wp-content\/uploads\/2023\/12\/Complete-CO2-set-NL-500x500.jpg 500w, https:\/\/planted-box.com\/wp-content\/uploads\/2023\/12\/Complete-CO2-set-NL-470x470.jpg 470w, https:\/\/planted-box.com\/wp-content\/uploads\/2023\/12\/Complete-CO2-set-NL-100x100.jpg 100w, https:\/\/planted-box.com\/wp-content\/uploads\/2023\/12\/Complete-CO2-set-NL-170x170.jpg 170w, https:\/\/planted-box.com\/wp-content\/uploads\/2023\/12\/Complete-CO2-set-NL-80x80.jpg 80w\" sizes=\"auto, (max-width: 1080px) 100vw, 1080px\" \/><\/a><\/p>\n<h2>Cheap CO2 system aquarium = expensive mistake!<\/h2>\n<p>Yeah, I get it. You\u2019re browsing online, you see a crazy cheap CO2 kit aquarium setup, and your credit card\u2019s halfway out.<\/p>\n<p>Let me give you one solid piece of advice: <strong>don\u2019t skimp when it comes to your CO2 system for fish tank<\/strong>.<\/p>\n<figure id=\"attachment_6230\" aria-describedby=\"caption-attachment-6230\" style=\"width: 314px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-6230\" src=\"https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/Aquarium-naaldventiel.jpg\" alt=\"Aquarium needle valve\" width=\"314\" height=\"314\" srcset=\"https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/Aquarium-naaldventiel.jpg 1001w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/Aquarium-naaldventiel-100x100.jpg 100w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/Aquarium-naaldventiel-470x470.jpg 470w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/Aquarium-naaldventiel-50x50.jpg 50w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/Aquarium-naaldventiel-170x170.jpg 170w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/Aquarium-naaldventiel-150x150.jpg 150w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/Aquarium-naaldventiel-300x300.jpg 300w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/Aquarium-naaldventiel-768x768.jpg 768w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/Aquarium-naaldventiel-125x125.jpg 125w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/Aquarium-naaldventiel-75x75.jpg 75w, https:\/\/planted-box.com\/wp-content\/uploads\/2017\/06\/Aquarium-naaldventiel-110x110.jpg 110w\" sizes=\"auto, (max-width: 314px) 100vw, 314px\" \/><figcaption id=\"caption-attachment-6230\" class=\"wp-caption-text\">Watch out for cheap needle valves!<\/figcaption><\/figure>\n<p><strong>This isn\u2019t a sales pitch<\/strong>\u2014it\u2019s aquarist-to-aquarist advice. Cheap prices seem great until the issues pop up. They&#8217;re often cutting corners on key components, and that can be risky:<\/p>\n<ul>\n<li>Low-budget aquarium regulator = <strong>leaks<\/strong> and hard to adjust<\/li>\n<li>Cheap needle valve = poor control, which means <strong>accidental CO2 overdoses that can kill your fish<\/strong><\/li>\n<li>Unreliable solenoid = CO2 at night = dead fish risk<\/li>\n<\/ul>\n<p>Spend a little more and get peace of mind. A quality CO2 regulator for fish tank will last you for years\u2014and might just save your tank.<\/p>\n<h2>Final thoughts<\/h2>\n<p>A CO2 aquarium setup is a must if you want to level up your tank game\u2014especially if you\u2019re keeping demanding plants. <strong>Here\u2019s why a good CO2 system for fish tank is worth it:<\/strong><\/p>\n<ul>\n<li>Faster growth &amp; better leaf color<\/li>\n<li>Compact growth &amp; lovely plant carpets<\/li>\n<li>Healthier plants &amp; fewer algae (especially thread &amp; beard algae)<\/li>\n<li>Way more plant options<\/li>\n<\/ul>\n<p>No CO2 system for aquarium? That\u2019s okay\u2014but your plant options will be more limited. Just keep an eye out for <a href=\"http:\/\/www.aquascaping-blog.com\/1258\/co2-tekort-aquarium\" target=\"_blank\" rel=\"noopener\">signs of CO2 deficiency<\/a>. Thinking of upgrading? Do your homework and get a quality CO2 kit for aquarium plants with a solid needle valve and solenoid. If needed, save up a little longer\u2014and keep your lighting a bit dimmer in the meantime.<\/p>\n<p>A beautiful aquarium deserves a top-notch CO2 system for fish tank.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Have you seen them too? Those gorgeous tanks full of lush plants, grassy carpets, bright red colors&#8230; What\u2019s their secret? Good CO2. Your tank lives or dies by the amount of CO2 in your aquarium for your plants. &hellip;<\/p>\n","protected":false},"author":2,"featured_media":129351,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"bwfblock_default_font":"","footnotes":""},"categories":[2407,2409],"tags":[2417,2419],"class_list":["post-146277","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-co2-systems","category-guides-co2-system","tag-aquariumtechniek-en","tag-co2-plantenvoeding-en"],"acf":[],"_links":{"self":[{"href":"https:\/\/planted-box.com\/en\/wp-json\/wp\/v2\/posts\/146277","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/planted-box.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/planted-box.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/planted-box.com\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/planted-box.com\/en\/wp-json\/wp\/v2\/comments?post=146277"}],"version-history":[{"count":3,"href":"https:\/\/planted-box.com\/en\/wp-json\/wp\/v2\/posts\/146277\/revisions"}],"predecessor-version":[{"id":146280,"href":"https:\/\/planted-box.com\/en\/wp-json\/wp\/v2\/posts\/146277\/revisions\/146280"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/planted-box.com\/en\/wp-json\/wp\/v2\/media\/129351"}],"wp:attachment":[{"href":"https:\/\/planted-box.com\/en\/wp-json\/wp\/v2\/media?parent=146277"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/planted-box.com\/en\/wp-json\/wp\/v2\/categories?post=146277"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/planted-box.com\/en\/wp-json\/wp\/v2\/tags?post=146277"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}