I noticed this morning 2 of my 3 fish have whitespot there's no way I can catch 2 of them as it's packed with rock and it's puttied together as 1 huge piece so I can't even take it out. IV been trying all morning with no luck so qt isn't a option. Is there anything I can add to my display tank which is reef safe as I have corals and inverts. Or is just a case of feeding garlic infused food and hoping for the best