Probably wouldnt make much of a difference tbh, they only really eat Encrusting Corraline Algae, which I my tank seems to have no problem producing (thanks to a balance of Kh Mag & Cal)
My CUC (Clean Up Crew) Turbo Snails, Conches, Hermits, Star Fish Etc keep the algea & detritus under control
Here is our Cichlid tank
We have since lost about 3/4 of the fish in there through blackouts and not having a battery operated air pump. very sad day for all involved
Sorry i dont know gallons. I only know the metric measurements of the tank.
I have a smaller one too with a Barramundi and some sort of catfish, sorry dont know specifics. Buy them for the looks not the names
Ill try and get a pick of that one when it is clean, Very very dirty atm