I have decided w/ 36g Hex is going to be a african tank. I am going to
get the tank tomorrow and am getting filter/gravel etc for it on
monday.

Question is what kinds should i get? Because of the shape of the tank
(think it is 2 feet tall and about the same across) I guess I can't
have as many as a long tank. So was thinking anything up to 6 or 7
inches? Any suggestions guys?