some q's

[ded dex]

I have a 30 gal tall aquarium that I would like to convert to a reptile or amphibian tank. I was thinking about dart frogs or newts or a combination if that is possible.

I am looking for a good show tank with bright animals, preferably a tank with multiple animals and species. is it possible to keep more than one species of darts together or do they fight, if it is how many will fit in this tank? if only one species how many.

can newts and darts be kept together?

is there a good combination of different species and types of amphibians that can be kept in the same tank without problems or will they not mix whatsoever?

thanks for any replies