![What to put in a 3 gal round? It's got an under gravel filter and I have a small heater for it as well. Not thinking betta fish although it's an option. What to put in a 3 gal round? It's got an under gravel filter and I have a small heater for it as well. Not thinking betta fish although it's an option.](https://preview.redd.it/0xxx835ab3v21.jpg?auto=webp&s=79f101f7a71d64d813f12cf8c54509df3754ea2b)
What to put in a 3 gal round? It's got an under gravel filter and I have a small heater for it as well. Not thinking betta fish although it's an option.
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