Join Date: Jul 2013
Location: Gainesville, FL
Dwarfs are known to get an iridovirus. There are other peaceful species though that tend to be hardier...I think a small group of pearls would look good in a tank that size.
I'd add more corys (maybe 8-10 total) and also a similar sized group of mid/top schooler like Diana mentioned...lots of different tetras/barbs/rasboras/danios/rainbows to choose from.