I bought and received an MP10QD last week and havent't touched it. Still in original box. Bought it from Marine Depot , and changed my mind about using it. But since I opened the box can't send it back for a refund. Went with instead the Current USA Eflux power heads and loop controller - bought the 660gph with kit & an additional one with 1,050gph. Saw them in use at my LFS and they are smaller than the MP10 and $82 cheaper, + I'm getting 2 powerheads instead of one. PAID $235 FOR MP10QD , WILLING TO TAKE A HIT & SELL IT FOR $215!! PLEASE LET ME KNOW ASAP IF ANYONE INTERESTED BECAUSE I HAVE A BUYER FROM ONE OF MY AQUARIUM CLUBS WILLING TO GIVE ME $225, BUT THOUGHT I'D GIVE SOMEONE FROM THIS CLUB FIRST DIBS.