sticky_love

I'm tempted to add a black molly to my tank, (only 1) as i want a bit of a "darkr" color to my set up...

However i have 2 harlequins,, 9 tetras (3 cardinals, 4 neons, 2 blacks) and 3 male guppys...

I have room as it a 60 gallon tank, however i'm worried about the molly breeding with the guppies? what are the chances....

Drew 43920

Yes. Mollies and Guppies can cross breed. However the fry usually do not survived.

Nick G

They can survive, and are called Muppies. They are usually sterile however, and most Petstores won't take them.

sticky_love

will make sure i get a male if i decide to get one

Bad Wolf

well mine don't crossbreed and i think it's not that likely.

but you have plenty of room even if the do breed. trust me breeding guppies and mollies is so much fun, but it is your decision. but if they do mate just leave the babies in their. they probably wont get eaten as there is plenty of space and no predatory fish. you can always trade them in for something else or sell them.