r/AfricanCichlids

I am looking at the setup and watching my fish's behavior and unsure if I should get more stones or more fish.

I notice the dominant male really protecting his cave. Which is normal, but also notice they chase each other quite a bit.

This is regardless of whether he is in his cave or not.

I have 240L and only 4 Yellow labs.

Yellow lab has wound either side of body. I thought it could be from tank mates or maybe scraping against decor. I also noticed a stringy thing on its underside that I’m worried could be some sort of parasite. Any advice is helpful thanks!