Pack Checker NH4

Ammonium is from organic matter, such as unconsumed fish food or excretion of fish, and it change high toxicity ammonia for fish and shrimp when the water quality becomes alkaline. Ammonium disappears once biological filtration works normal, therefore you find when the biological filtration works.

Article Code Item
103-206 Pack Checker NH4 (5 packs)

The purpose of Pack Checker