 They do best if kept in tanks with plants (preferably live plants, but fake will do) to give them hiding places and (although they may be less likely than guppies to eat their own young) give the fry a better chance at survival.Some of them are determinedly suicidal jumpers, so a cover on the tank is a must.Endler's may be fed any of a variety of dried, frozen, or freeze-dried foods, as long as the food will fit into their relatively small mouths.