CBRGuy said:
1. If the fish is truly heathly they will heal them selves from ICH. I know many people in my club that have had ICH in there tank and have completely become immune to it.
Gotta disagree with that. Aquired immunity is short lived and typically does not last much longer than 6ish months. Even if you do not see evidence of the parasite, it will still be one the fish. Any additions or interuptions of the tank will as a rule bring about a full blown infestation. As long as the fish are in the tank,
C. irritans will survive!
2. (AndI know I am going to get flammed for this) There is no way to keep ICH out of your systems. Unless you
QT everything Corals,fish,
LR,
LS etc...
If you pick up a coral and they run on the same system with fish. You have a chance to get ICH. Same with
LR and
LS.
No flame intended but keeping any parasite infestation out of the main display is completely fesible and 100% effective when
QT'ing
all fish. I do agree that when purchasing corals and such with hard surfaces there is the small possibility or introducing a parasite as well. Personally that is why I always recommend buying mobile and sessile inverts alike from fishless systems. No fish, no ich
Cheers
Steve