Opinions on powerheads wanted.

[misfitkris]

For internal flow on a 75 gallon I am building what do you think would be better?

2 Koralia 4s?

Or two Sure Flow modded Maxi Jet 1200s?

Please post reasons why not just which ones. I am especially curious to hear from those that have used both.

Thanks,

Kris

[LockeOak]

I just put two Koralia 4s in my new 50G bare bottomed tank. They really do put out a lot of flow, but it isn't too focused (good or bad depending on the application). There's an optional attachment (included) that focuses it a bit. I can barely hear them if they're the only thing on in the room, I'm sure they're quieter than most of the other equipment I'll have up and running (return pump, lighting fans, etc.). Low power usage as well, always a plus. Granted there's no livestock in the tank yet but just by watching particles get blown around they look like they push a heck of a lot of water, I'm happy with them. They're a little larger than I would have liked but not huge, the magnets work great and they can be aimed very easily. Never used a Sure Flow mod.

[steve the plumb]

I just bought 2 korrilia #4 and they hum.One was to annoying that I placed it in my sump.I have read they are supposed to be quiet.