20 Long Stocking Suggestions

[PapaRoach]

I currently have a 20 gallon long with:
1 - Small Blue Gourami
5 - Tiger Barb
1- Green Tiger Barb
6 - (I think) Peppered Corydoras
1 - Raphael Catfish

Im having an issue where pretty much all of my fish stay on the left side of the tank (away from the filter/heater) and i want to add one or 2 more fish to the tank to see if i can get some activity on both sides of the tank. I have a cave setup so my catfish can hide during the day. Are there any suggestions for fish that may also enjoy spending time on that side of the tank? Im thinking maybe a male swordtail.

 

[goatnad]

You are at your limit with that tank. It won't be long and your catfish and blue gouramis are going to need a bigger tank. When you do that then I would think of adding new fish to this tank.

 

[King Fisher]

You might keep a close eye on that catfish once he's full grown. He could eat small schooling fish and those Cory's.