Haha! They aren't aggressive at all, but unfortunately my golden wonder killis will eat anything that fits into their enormous mouths.
Aplocheilus lineatus is not like most killies. They are active predators that can eat fish as big around as they are. I had a pair, and was willing to put up with the occasional missing guppy, but when they started eating my rainbows, I took them back to the lfsHmmm. I will definitely have to keep that in mind when I'm considering killies again... they are beautiful fish though!
