<a href=showthread.php?s=&postid=9026196#post9026196 target=_blank>Originally posted</a> by DEXTER SOLIS
question: if Ich is a parasite therefore it needs a host, a fish becomes a host in states of weekness & stress. Ich cycles <>8 weeks, if 8 weeks past without a host it can pobably stay in the water columb....how do they survive if you keep your friends nice & healthy for m orethan the said cycle?
Dex,
I'm not 100% sure on this, so don't take it as gospel.....
If the parasite is in your tank, but fish are healthy and happy, the parasite does attach to the hosts, the numbers just never get high enough for you to notice, because the fish fights it off naturally.
The lifecycle of the ICH continues, it just can't get a foot hold as your fish are able to beat it.
The potential problem with that is Murphy. When things go good, a heater stops working, and your tank hits 70* Your fish are cold, and the ICH gets a chance to get started.
<a href=showthread.php?s=&postid=9026394#post9026394 target=_blank>Originally posted</a> by Long Island Andy
Larry
I am not suggesting that just ignoring the ick is the way to go, it is not easy to watch fish die, I am only saying the stress of catching and treating the sick fish only seems to make it worse. In all honesty when the fish have come down with ick I have never had one come back after I caught it and tried to bring it medicate or use hyposalinty. The fish he has in the tank are pretty hard guys to kill. If they die from ick something else has to be wrong in my opinion.
I know Andy, and you're right. It's a very hard call to make. The possible downside long term against the possibility that there may be no downside at all.
It's a catch 22, chances of killing an ICH infested fish just by trying to catch it are extremely high.
drej,
Unless you're REALLY on top of medicating, I wouldn't recommend copper. It's not really "fish friendly" it just kills inverts at a lower concentration than what it takes to kill fish. Many fish, Tangs, for example, don't take well to copper treatment. Keeping the exact level you need is difficult, and going too low will not kill the ICH, going too high will kill your fish.