Is it possible to add copper to my display because all i got right now is a fowlr but my fish in my display are covered in ick and some black ick i noticed as well. I have 5 cleaner shrimp i know i would have to remove them but i was planning on possibly turning it into a reef tank one day is it possible on pulling all the copper back out with absorbent medias or is it forever going to be a fowlr either way im not to mad because im not finished stocking the aquarium and i would like to get some fish i never had before because of them not being reef safe but would love to have have a 125 gallon reef aquarium as well. Either way it goes i wouldn't mind a fowlr or reef but just wanted advice on the copper treatment.