mr_X
Aquarium Advice Addict
By "tap-safe" are you referring to a product like Prime or Amquel? If so, I took this from Amquel's website- "AmQuel Plus does not reach toxic levels even in cases of accidental or purposeful overdosing."
Also, I've been using it in the top off water in a reef tank I maintain for about 3 years now, and have seen no Ill effects. There is even hard to keep Acropora in this tank doing well.
Also, I've been using it in the top off water in a reef tank I maintain for about 3 years now, and have seen no Ill effects. There is even hard to keep Acropora in this tank doing well.