Madmilkman
Aquarium Advice Activist
- Joined
- Sep 10, 2013
- Messages
- 144
I have a 20 gallon tank to set up as a nano reef with live rock and some basic corals(trying to find hardy ones). I have a penguin 350 filter on the tank. My question is can I put any kind of small fish(preferably a couple of brightly colored ones)in the tank without adding a skimmer?