Seachem Aquavitro Freshwater Carbonate Alkalinity Buffer

Aquavitro Carbonate is a concentrated carbonate alkalinity supplement built specifically for planted freshwater aquariums. In a heavily planted tank running CO₂ injection, carbonate hardness (KH) drops fast as plants strip bicarbonate from the water column. Keeping KH stable in the 3–5 dKH range is critical because it buffers your pH against wild swings during the photoperiod — without it, CO₂ injection drives pH into territory that stresses fish. Carbonate lets you dial in and hold that range without overshooting.