I always have kept my livebearers in the same species tank but short of room ( need more tanks ) so popped these in with the guppies , clown loaches , yoyo loaches & cory's until I can get hold of another tank , not had a problem with them in the community tank so far . Breeding is easy had them before many years ago every 3-4 weeks the female can produce 20-40 fry in a single brood still waiting for the 1st young but its only a week since I bought them .