always getting sick

[mseepman]

You may want to look into the new biopellets to help you get those last nitrates down. Some have suggested that a uv filter will help with the ick as well...eliminate it from the water column at least, but I haven't tried that.

[plutoniumJoe]

I would also add that dosing all food with Garlic and Selcon keeps ich at bay for me. When I made my switch over to my new tank I added a yellow tang, probably too soon and within a day it had black ich. Uped the Selcon and Garlic and it disappeared in about two days and did not return. I then got brave and added a Copper Banded Butterfly. This time traditional white Ich struck him and my regal tang. Stayed up with the Selcon and Garlic and all are doing fine.

-Joe

[mark]

if your tank has had ick, there's a chance every fish you add it will catch it no matter the quarantine, as the ick is in the tank.

Keep the fish healthy as you can, keep the stress down, keep the water quality up will help reduce outbreaks but won't eliminate ick. For that you'll need to remove ick hosts from your tank (fish) then let the tank go fish fallow for something like 6 weeks to break the ick life-cycle. Then to ensure you don't get ick re-introduced you need a rigid quarantine of everything that goes in (fish, corals, macro) for a month plus, not just 2 weeks.