Cuboid Aquatics Citric Acid is one half of the two-part chemical pair that powers the Hygger CO2 generator. These are packaged by us at Cuboid in the exact quantity needed for the Hygger all-in-one CO2 generator, which produces CO₂ by reacting citric acid with sodium bicarbonate (baking soda) — a clean, controllable reaction that gives you pressurized-style CO₂ for a planted tank without a gas cylinder. You need both chemicals to run the generator. The citric acid is the "acid" side of the reaction — when it meets the sodium bicarbonate, the two release a steady stream of carbon dioxide for your planted tank.
Good to Know: Pair this with our Cuboid Aquatics Sodium Bicarbonate — the generator uses equal quantities of each, so you'll buy the same number of packs of both. We pre-portion everything into 200 g packs so you don't have to weigh anything: just grab the right number of packs for your generator size and go.
How to Use — Hygger generator fill: Use one 200 g pack of each (one citric acid + one sodium bicarbonate) per fill of the 2 L generator, and three packs of each per fill of the 5 L generator. Follow your generator's instructions for the order and water volumes when charging the bottles.
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