squirrilah fish
Aquarium Advice Addict
- Joined
- Dec 1, 2012
- Messages
- 1,398
And you're right that Ich doesn't just happen. First off it needs to be introduced from an outside source as it is not always present in the water column as so many people will try to tell you. Once introduced though it still isn't a huge threat as long as your tank is clean and maintaned. It's once one fish is stressed or sick or just vulnerable is when it will take advantage of the situation and be able to infect the first one and then spread from there.
Also the belief that once Ich is in your system it never leaves is also a myth.
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