Hi guys/gals i bought a 200g (actually it's more like a 195g) tank a couple months back and i am finally setting it up. I am going to put polypterus and datnoids in there. I would like to know how many i can put in there and what type would be better suited. The tank is 72"L x 24"w x 26"h. However it has an over flow that comes out about 7 1/2 inches into the tank. I was not sure if the overflow would affect what type i would get. Any help would be greatly appreciated. Thanks for looking . P.S. I was also wondering if i could possibly mix the different types, also if i were to choose i would choose i'd like to have these ST, IT, and NTT. Thanks a lot guys/gals