Mbuna african cichlid 180 gallon aquarium

Species: Melanochromis chipokae, Metriaclima estherae 'cherry' 'OB', Metriaclima Fainzilberi Maison Reef, Metriaclima elongatus Chailosi, Cynotilapia aurifrons (Nkhata Bay), Metriaclima sp. Msobo Magunga, Metriaclima hajomaylandi Chizumulu, Pseudotropheus williamsi 'North', Labidochromis Hongi 'super red top', Labeotropheus trewavasae Chilumba ''Ochre'', Chindongo (prev Pseudotropheus) demasoni 'Pombo Rocks', Sciaenochromis fryeri Maleri Island ''Iceberg''. This system is held at 80f, it is filtered by 2 FX6, 1 Ehiem 2217 and 1 SunSun 304b, 70% of the water is changed weekly using fresh RO water mixed to recommendations using Seachem additives, due to my very bad faucet water. I feed a varying diet of Ken's premium veggie flake, spirulina flake, Northfin veggie pellets, NLS cichlid pellets, defrosted shredded shrimp and defrosted unshelled peas. There are about 70 fish in the tank atm, this number changes due to the constant release of fry and the constant predation on that fry by the fryeri and the chipokae... enjoy!