So I have a huge problem and at this point I am getting worried because one of my smaller Texas cichlids turned completely black. And not only that she now has bite marks on her tail area and pieces of her fins missing not huge pieces but little pieces missing and on her tail area she bad bite marks. I have been trying to get more Texas cichlids in my tank to do what all the experts told me and that is to get more Texas cichlids in my tank and they will begin to not be so territorial but idk I now have about 6 Texas cichlids in my tank and the newer male I got is now just a huge bully and we didn't have any of these problems till he got out into my tank he literally chases all the fish and tried to bully them he is I would say like just a few inches bigger then the rest. And he is just a huge bully literally I've don't some research and I know when the bottom half of the Texas cichlid Is black it has to do with matting but there is no information at all on what it means when the entire Texas cichlid turns black like she was a Grey color with like blue spots but now she is jet black her entire body and I've noticed bite marks idk what I should do or how I should fix this but can someone help me please because I love each one of these fish but I got her and her male first so I love them more then my new breeding pair truthfully so seeing her like this Is honestly pissing me off truthfully so someone anyone please help

