I have 2 females ( one standard grey and one white) and 2 males (both standard grey). They have been together for about 9 months. Everyone seemed to get along. Now our oldest male Ranger is being a butt and picking on our white girl. He has no problems mating with her bit he's picking on her tail. What should I do?

Take her in for fecal testing.

What diet do you feed?

how old are they all

are the males neutered or intact

The boys are not neutered. As for diet. They get fresh and frozen fruit and veggies as well as a crunchy balanced food.

Also Ranger is almost 2 years old. Ralphie is a year old

Ok just wanted to make sure it wasn't a coming into sexual maturity thing.

I'd advise taking the female in for a fecal exams. When a cage mate starts going after another's tail or butt area it can be an indication of parasites/worms or some other health/medical issue going on. You may need to do 2 rounds of fecal testing 30 days apart to rule out parasites or worms, they don't always show up in the first test.

I asked about diet because if you feed a diet that includes bee pollen the vet needs to be informed of that and that they can cause a false read on the fecal tests.

Thank you so much.

your welcome If she is positive for parasites or worms you will need enough meds to treat all the gliders in her cage or that she's been in contact with.