I'm thinking ahead (still working on plants/cycle). If I went with two moderately large schools of nano fish, say 8-10 each of rummynose tetra and green neon tetra, will they have room enough to roam (as two schools) in my planted 29 gallon? Or should I pick one or the other (and go with a larger school)? I purposefully kept the front half of the aquarium open for schooling, with a variety of plants in the back. Decisions. I got sand for Corys. It seems they school and it's best to have 5-6. I would love 5-6 Sterba Corys, 3 mini plecos, and 2-3 male guppies in addition to my school(s). My last tank was a 10 gallon, which I kept pristinely clean. I'm not sure what is best for the 29 gallon. And what is best for the fish! Thanks!