We have 10 Mickey Mouse Platties, 5 yellow tail guppies, 1 blue, split tail guppy, 1 sunburst platty, 2 blk mollies, a handful of assorted tetras and 4 algae eaters.
The guppies keep harassing the platties. They chase them and nip at them. Some of the platty's fins are ragged. I have read other posts and I do not think that there is worm problem that is causing the nipping. The guppies seem to leave all the other fish alone. Should I find a new home for the guppies?

We have a 125 gallon tank, total fish about 35, good on nitrate/ammonia levels; water may be a little alkaline, but still in safe zone.