Wat is this product?
The most important nutritional element for your aquarium plants? That’s probably CO2. Without sufficient CO2, you’ll get all kinds of deformities in the leaves, the plants will lose their beautiful color and worse … algae will develop.
So how do you know if you are adding enough CO2 for healthy plants? Well the “Clip” drop checker helps you with that. Just look at the color of the drop checker.