I've kept diffrent things in this tank i originally had guppies in it then i reared loads of batches of fry in it i used it as a hospital tank for cory's i had bought with fin rot it's been used for rearing cory fry from the egg's til they we're big enough . Kept angel's in it til the tank had been cleared of the stock they would eat . Had shrimp in it too
You are limited to the size of stock you could keep but if you were looking to keep Dp's you could keep 2 comfortable with shrimp lot's of plants and hiding places
But there is a wide variety of fish you could keep in it comfortably !