Originally Posted by Crowntails
Also, when getting Endler's, make sure your only get males because they will explode with babies if you get mixed genders. I don't believe bettas are good tank makes with Endler's because Endler's are so brightly colored, the betta may attack it, thinking its another male.
I've never had that problem. The male Endlers are so small that the bettas don't seem to feel threatened. Of course, it is betta-dependent.
As I mentioned earlier, a betta is actually pretty good population control. :) Without some sort of fish to eat the babies, though, you will have a spurt in population, as, unlike guppies, Endlers don't usually eat their own young. Their mouths are too little.