Question about Mag 3 pump.

[cato]

Anyone use a Mag 3 pump? How noisy was it? What kind of heat do they produce?

 

[ssgatbliss]

I've got a MAG3 and a 5. 5 in the sump and a 3 in a 30 gallon trash can just for mixing water. As long as there not up against aything it's quiet, they do put out a bit of heat though. There warm to the touch but I still need a heater in the 30 trash can to keep the temp at 70 so it's not a tremendous amount. I had read a bunch of bad things about MAG pumps on the WWW but after talking to some people who actually use them and after using them myself there a good pump.

 

[sttroyiii]

The trick is to only use them for pushing water. Dont try to run them externally, as they make a lot of noise. They dont use gears, only magnets is the reason. I have a mag 7 and my Coralife SS 65 skimmer makes more noise. Mine is for a 37g. tank w/ 10g. sump, and I still have to use a heater, although its just 150w.

 

[ssgatbliss]

Both of mine are submerged if i didn't mention it however it's a sealed unit so i don't see why it would make more noise unless it didn't have enough flow and air would be trapped in between the magnets. I thought about going external with the MAG5 but the location below my tank doesn't have enough room without making some stand modifications (cutting wood) which I'm not willing to do. I do know that the MAG's won't pull water so it has to be located below the water line, don't know if that's an issue or not.

 

[cato]

Thanks guys for your input. Much appreciated. My plans were to upgrade my HOB Remora's skimmer pump from a MJ 1200 to a Mag 3.

 

[ssgatbliss]

Wow that's a big upgrade, I had to take my remora off because it caused too many microbubbles in the tank. The Prizm is back on and although it doesn't work quite as well I don't have the micro bubbles anymore and the tank looks much better.