So now that the 180 gallon is cycling with media from my other tanks-- on to considering fish. The Geophagus ( appx. 6) The type I get depends on availability... Right now Rapps of Tangled Up in Cichlids has some contenders I am considering. On the top on the list is an extremely rare wild geophagus called g.proximus. The second choice would be g.sveni. It appears this variety is more readily available, but still rare. Tetras (appx. 12) This fish gets just under 4 inches. I am considering going outside of the semi-biotope I was attempting to stay within and getting this rare beauty: phenacogrammus aurantiacus "Lamp-eye Congo Tetra." Altum Angels ( 3-5?) Not sure how many would fit in this size tank? @TexasDomer , maybe you can help me with that? Any comments or suggestions?