How To Set Up A Hospital Tank For Your Sick Fish

How do I set up a hospital tank for my sick fish?

When you set up a hospital tank for sick fish, it doesn't have to be really big because it's not a permanent thing. I usually tell people ten gallons is great. If you can get up to 20, that's awesome. Usually I will put a lesser type of filtration in there, like a little corner filter or something like that, just so I can have some kind of biological processes going on. You can circumvent that by doing frequent water changes on it, but basically it's to have a heater in there so you can control the temperature. Bring it up or down if you want to use that as some medicinal purpose, and treat it like any other tank. I don't put substrate in it at all - no sand or gravel. Some people put sand. I just leave them as an empty tank, good oxygenation, possibly some filtration, and a heater. That's pretty much it.