ru4serious
New member
I have a 220 gallon undrilled aquarium that has ich. I have moved all coral and inverts into a fishless 120 Gallon tank.and the few surviving fish into a 55 gallon tank to treat with cupramine. I have decided to take this time to buy a new reef ready aquarium so I moved all the rock into a 100 gallon stock tank that was my sump. I plan to fill the new tank with fresh water initially to test for leaks. Knowing that the stock tank with rock still has ich I am thinking of putting the rock back in the new tank while it is still filled with fresh water to kill the ich (sort of super hypo salinity). Will this work?