I would appreciate your guy's help between picking out these two powerheads. I can either get one XF230, or one MP10, I cannot afford to get two MP10's as it is way too much. My tank is a 37 Gallon, essentially it is a 24' tall 29 gallon. If i have one MP10, I feel like i wont get much variable flow to avoid dead spots. On the other hand, the Gyre may be to powerful, although i have seen people run them on tanks as small as 20 gallons. Anyone want to tell me their two cents on this?