Opinions on another fish
 

i have a 20gal with 2clowns, yellow watchman goby, and a purple firefish. Any opinions on another fish. thanks :)

I wouldn't put too much more in the tank without the fear of overcrowding.

If you decide to, a good choice is add a pistol shrimp to pair with your watchman.

Other choices would be the following, especially if you feed frozen;

• Scooter blenny (mandarins are not a good choice due to food requirements)
• chromis
• royal gramma
• another firefish (red or scissortail)
• cardinal (bangai, or pajama)

Ken - BWA