Got my CP from Ebay today and will do the dose for the scooter blenny tomorrow. Says 40 mg per gal, or 1/8 t for 10 gal for QT or for Marine Velvet 1/4 t per 10 g. Will do a small water change first. Does he need the full 30 days or just 10. Other fish are nearly done with their copper treatment and I can add carbon and such to the canister filter on that tank. When the blenny is done with his treatment, he'll join them until all can be returned to the DT or DR. I think he'll continue to eat. He seems to be doing fine. Then I can sterilize the tank and be ready for a couple of new fish to qt to time when tank is no longer fallow