Johnseye
Reef Addict
What was in this tank?? Rock, sand ect? What was the dosage per mg/g? I would never dose CP with the scoops as the bottle says, it's not accurate at all.Copper isn't known for being great at treating ich, let alone velvet. Sounds like the CP you used was bad. I have seen CP cure velvet in 10 days before so there is no question it works. Carbon doesn't remove CP from the water very well contrary to what people believe, also the med isn't broken down by UV from lights on the tank like was previously thought
Do you dose it at 40-60mg/g as if it were the 99% pure grade from a vet pharmacy?