Hello, I've recently upgraded from a 20g to a 30x30x12" shallow tank. I was using a MP10 for my 20g with two additional small cheap pumps on the corners. Now I switched to a MP40. I would really like to hear your opinion on the pumps for that shallow tank. What do you think would be the best flow solution. Two MP10 on each side of the tank or one mp40 in the center like it is now, or maybe two mp10 on the back wall? Please advise the best solution according your professional experience. Thank you. Alexey.