Who Gives A Fish Forums

For a 20-gallon, avoid larger fish like Angelfish or Silver Dollars. They'll eventually outgrow the space and may damage plants. Stick to nano species for long-term compatibility.

Thanks for the input, everyone. I'll rethink the rainbow shark and maybe look into a smaller bottom-dweller instead.

I'm considering adding a rainbow shark to my 200L community tank. The tank has a sand substrate, plenty of driftwood, and some hardy plants like Java fern and Anubias. Current inhabitants are tetras, Corydoras, and a pair of angelfish. Will the rainbow shark be too aggressive or outgrow this setup?