hey everyone. A friend of mine had a 20 gallon tank with a pretty old tetra HOB filter, a old, (AND RECALLED XD) topfin HT150 heater, as well as 5 Pipidae frogs that he raised from tadpoles from those infomercials on TV. pretty funny actually, considering the largest is about a foot long... Anyway. I got them out of the 20 gallon, and I went to the home improvement store and bought a 30 gallon tub. I put them in the tub, figured it was cheaper than spending money on a tank as it will just be cloudy anyway as these guys are legit HOGS. Anyway, I wanted to know what I should put in the 20 gallon. I actually have a "species list" of species I eventually want to keep sometime. Here are the ones I was considering: German Blue Ram/gold ram, cory cat, cherry barb, dwarf rasboras. I really only want to keep a single species in this tank, as well as some simple to grow plants like swords, etc. I don't know if the heater is a collectors item or anything lol. If I called them or something would they send me a replacement heater? Thanks I'm free for lots of other suggestions for stocking this tank btw.