Feeding time in 180G South American biotope tank

The stock in this tank consists of : 9 Geophagus winemilleri 4 Acarichthys heckelii 2 Heros liberifer 2 Heros efasciatus 2 Heros notatus 1 Hoplarchus psittacus 2 Geophagus brasiliensis ’Bahia red’ ~8 Young Heros efasciatus (2“) that survived in the tank from a spawn about 4 months ago.