Seriously that is really crazy. I can't believe you have that much that's just insane. I mean too much to the point that it's mind of unattractive.
I am over stocked too, but Mbuna like it that way. I have
5 full grown yellow labs
4 juvie yellow labs
2 full grown demasoni
8 demasoni juvies
2 full grown pearl mutts
3 pearl mutt fry
4 red zebras
1 full grown maingano
1 full grown kenyi
That's 30 fish in a 75g. They all get along great there is aggression every now and then. They breed all the time. This month I had the demasoni, a lab, red zebra, and kenyi hold fry.
I feel bad for the OP's fish, as well as his potential dogs/cats/children who are undoubtedly also mistreated
I hope this doesn't start that ridiculous JDM trend again... if you did that with reptiles people would flame you to tears... why it's acceptable with fish is beyond me