I bought a Fluval Spec V on Black Friday but haven't done anything with it yet. It will still be a while until I'm ready to set it up but I'm curious to see what I can put in it. I've looked into pea puffers, scarlet badis (Dario Dario), and least killifish (not sure on the Latin name. Couldn't find much clear info on Killifish.) However, I still consider myself to be a beginner aquarist and none of these seem to be beginner fish. Any suggestions? I've also seen celestial pearl danios but don't know much about them either. I'd be okay with a solitary fish but would like to try some schooling fish if possible. I don't want to deal with fry so nothing that reproduces quickly/on their own. Preferably fish that can be kept either all male or all female. I'd also be interested in aquatic frogs if anyone has info on those. Thanks in advance!