Male guppy is chasing female platy around, I think the platy isn't quite to adulthood. I have a 36 gallon with 9 albino corys, 7 harlequin rasboras, 2 platys, a molly, guppy, and 2 zebra snails. And this has been going on for awhile, and I thought it would eventually stop.Hunter1 said:Describe bullying.
Fish chase fish.
If it’s a mature male guppy, and a juvenile male platy, it’s for dominance.
Mature male guppy and female platy, trying to breed.
If no injuries, I wouldn’t worry.
But knowing your entire stock would help.
Sometimes just adding a couple more females will spread the aggression out so it doesn’t stress anyone.