Originally Posted by
kpatrick
azfishgal,
Thanks for the info!!That clears up any confusion I had about ick. Like you said, everyone has an opinion or information to give. (some better then others).
Lets take the information you stated above and say the powder blue or hippo will be last fish I purchase for my DT. I put it in a QT for 4 weeks then add it to my DT. Nothing would be introduced into the DT after I added the tang so there would be nothing that introduces the parasite and no way to get the parasite 3 months or a year from now???
You have a much larger chance introducing ich to your DT through fish, BUT it is possible to introduce ich through corals or live rock. Yes, they need a fish to host on, but if the live rock or corals were in a tank with fish that had ich they can be carriers of ich. However, ich would not survive it's complete life cycle if it was in a tank with just corals. Does that make sense? So in reality, if you want to be 100% ich free with no doubts you need to QT everything. Unfortunatley it's harder to QT corals because of light needs so some people, including me don't always do it. Going back to what you said though, if you do in fact have an ich free environement and you QT your Tang for 4-6 weeks (I say up to 6 because it's the life span of ich) and then don't introduce a single thing after that, you will not see ich on your fish. This is of course knowing for a fact that your tank is ich free. This is also a reason many people after curring the live rock and adding a clean up crew will NOT add fish for 6 weeks, just to make sure the live rock and inverts they added are not carrying ich.
How's that for an answer.