i only started quarantine after tank wipe lol, last time keep frantically trying all the reef safe method like garlic, feed nutrition food etc all dont work, fish still die, velvet is ultimate kill damn fast, 1 -2 days gone, even hardy fish like clowns also cannot survive. also try UV, no work also it doesnt do anything to those parasites on fish probably just killing free swimmers, tried copper and it works, follow the saying: if reef safe cant kill ich, those can kill ich not reef safe Sent from Singapore Reef Club mobile app