Just to add to the MP10's rep...
I have one and it has done its thing without issue for a year and a half in my 34 gallon hex. Then, my siphon gave up on my bean overflow and my coast to coast overflow filled up. No big deal, as I have a dedicated tank overflow that sprung into action. Well, it had a drip..drip...drip leak from an unglued PVC joint (don't ask.) Unfortunately, this was when I was on vacation and the drip was right onto my MP10's controller box. It got fried.
Anyways, I called ecotech marine and their guy directed me to their parts page and showed me their upgrade controllers. They have engineered them so that they could upgrade/update the electronics, and the wet side and dry side of the motors was still totally compatible. The plug was the same and it was really easy to change over.
I was really impressed with their foresight in design and the quality of their product.