I run 2 ecotech mp40wes' going on 2 years, they are ex pensive in my opinion. Love them they do everything I need them to do, they are a little noisy but I've learned to ignore them. I had koralias before they worked but were nothing special, but cheap. I can't add anything about the other pumps because I've never ran them.
If I was to buy more powerheads I would probably save up and buy QDmp40's.
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