raspbora

So I had a very stable set up in my 5 gal Fluval Spec tank for about 4 - 5 months with my Betta. I then added 5 baby neons to the tank. I plan(ned) on upgrading to a 20g.... Everything went well for several weeks, then a fungus bloomed and killed the neons. In a panic, I contacted my LFS, but...