variety!!! live brown worms, live brine shrimp and the best quality dried fish flakes. both types of fishes you describe are omnivores (they eat anything and everything fishes) temp. is important, 85F for 6 months then slowly 78F for another 6. hot season and a cooler season. peat moss in the tank will color the water a golden tea color and acidify and soften the water. the fishes colors will astound you and they may spawn. 10% water changes weekly at 78 and 5% weekly at 85. think Amazon and Indonesia... my favorite... Moen tetras (red eyed tetras) cardinals also! great luck to you from Sparklesquid in Portland