prolapse egg tube

Unsure the sex of my new red devil. Store told me it is male but I think it’s female. Noticed it’s part looking very large today almost like it’s falling out. I’ve only had the fish for a few days. I’m getting worried. Hoping someone can give me advice as to what to do.

I pick this guy up at Mississauga Aquarium about 14 days ago he's eating and everything's fine otherwise . I've had the tank setup for about 2 months I have to hang on back filters installed once an AquaClear 200 and the other is an AquaClear 50 the temperatures around 30 degrees my pH level...