I really like the water blaster pumps for my 125. Mine is 4 years old and still runs like day one. I have the hy5000 I like hi flow so I wish I would have got the Hy 7000 so I could run reactors. I have considered dc pumps. Mainly for the lower cost to run and I like the idea of lower voltage in tank. But I don't see the point of a pump I can change speed on as a return pump, for one if you size it right. You shouldn't need to change speed and they seem to have kinda week head pressure. Oh and I think the water blasters have a 3 year warranty. So if I was going to to buy a new pump today. I would get the hy7000 or a ecotech m1