The guy at the fish store told me they might get nippy with shrimp when they get bigger. Has anyone experienced this?
I keep dwarf shrimps together with guppies and some other fish and those shrimps are completely left alone. But my fish are used to small tank mates.
So are they more prolific than guppies?
Endlers are less prolific than fancy guppies. So, lesser fry in each batch. But the gestation period is the same.
Endlers and guppies will hybridise.
Well, endlers are actually also guppies. The difference is that it's a different branch of the official known guppy species (so, no strains but species!).
There are 5 listings of official guppy species. The most known one is the
Poecilia reticulata. The others are
Poecilia obscura,
Poecilia wingei,
Poecilia kempkesi and all
Micropoecillia species. They're all wild guppy species but differ in DNA. They're all close related and their sexual organs are compatible with another, which makes an actual mating possible. Hybrids between them are all fertile.
The current fancy strains (means all breeding forms), are results of linebreeding natural mutations and linebreeding on certain existing traits in the first place. But there are also a lot of breeding forms that are the result of breeding
Poecilia reticulata with members of one of the guppy species I've mentioned before.
The adults will also eat the fry if you leave them in the same tank, unless it is densely planted.
Pure endlers won't eat their fry. Same goes for other wild guppies. When it comes to breeding forms of guppies, certain strains eat their fry and other strains just leave those fry alone.