There's a new product I'm myself am using for my
SW. It's safe for all swims of life.
FW/SW. It's kills the free swimming protozoans and the infestations of the fish. So far it's working wonderfully!
It's called NO-ICH by FishVet. I found it at Pet Solutions. So far it's the only thing that's been working in my tank, without harming my inverts and corals.
You need to remove the carbon. It's also really nice because it doesn't stay in your tank for long. So no over dosing worries and you don't need to test for anything.