Can Adding To Much Fritz Sludge Cleaner Hurt My Fish in the USA

Alive or dead, FritzZyme® is non-toxic and completely safe. It will not harm fish or invertebrates, even if accidentally overdosed. Can you overdose Fritz complete? DO NOT OVERDOSE. A sulfur odor is normal and dissipates rapidly after use. In certain rare conditions and in low oxygen environments this product may reduce dissolved oxygen levels; ensure…