Do you know how hardness/PH of your water? That makes a big difference in how you stock your tank. Bettas don't really mind, Neons like soft water, and snails prefer hard water.
I'd avoid ADF'S as they can be tricky to feed, they have terrible eye-sight, and the other fish sometimes steal their food. ADF's can work in a community with a bit of effort.
Neons often die quickly as they have been over/poorly bred and their immune systems are usually quite weak. This is not always the case, though.
You'd be better of with the 29 gallon - bettas (AS well as most tropical fish) prefer a long tank rather than a tall one.
I'd avoid ADF'S as they can be tricky to feed, they have terrible eye-sight, and the other fish sometimes steal their food. ADF's can work in a community with a bit of effort.
Neons often die quickly as they have been over/poorly bred and their immune systems are usually quite weak. This is not always the case, though.
You'd be better of with the 29 gallon - bettas (AS well as most tropical fish) prefer a long tank rather than a tall one.