If you’ve ever had to isolate fish, for any reason, you know there are several ways to do so. The best method to use depends on why you need to isolate the fish. Below are a few options:
- You can move a fish to its own tank.
- You can put a fish in a breeder box (either a hang-on or submerged). Or you can make your own custom isolation box, like the one I posted about here.
- You can put a divider in the tank where the fish already resides.
- You can put a divider in a hospital tank to treat multiple fish simultaneously while keeping them separated.