A couple days ago it got a pair of Apistogramma Viejita. This is the first Apisto i have had. I have a 75 gallon tanks with 4 medium size discus and 20 med-small tetras and a clown loach and temp. at 84, Is that ok for them. Also what foods should i feed them. Also could i add any more discus? Any advice on the Apisto could help.