I am really really surprised that people feel that ich is always present.
1. Ich needs a host. How can a fishless system have ich? It is brought in through poor quarintine procedured.
2. Ich cab be "managed" with things like garlic, uv
, cleaner shrimp....It can not be erradicated unless the system is left fallow.
3. The only time I would advise to leave a fish in the main is if it is so bad that moving it may make it worse by stressing the fish. In this case the determination needs to be made, whether to "manage" or erradicate.
There is a reason why people feel that ICH is always present and it always seems to be those people that say ICH can be defeated with the use of garlic and other remedies. That is because ICH is always present in their systems because they do not properly erradicate it.
Sadielynn, you can leave LR
, inverts in a tank and the ICH will go away after its life cycle and it has no host.