2 dojos, 1 pair of apistogrammas, 1 dwarf gourami, 5 albino cory cats, 10 gold white cloud minnows, 2 upside down catfish (synodontis nigriventris) 2 rubber nose plecos 1 clown pleco and an African butterfly fish in a 55 gallon planted tank. I have a 320gph powerhead with sponges, a moving bio filter that's a good size, a bio wheel 350 with lava rock as media and an intake sponge. Plus a small filter I fill with floss to polish. I want to add more can I afford it? Maybe more filtration? I've been fine so far and plan to add much more plants to help too. Keep up with water changes of course.