How much water flow?

[RocketSeason]

How much water flow will I need in my tank?

I have a 37 gallon cube shaped tank.

I have a Magnum 350 pumping somewhere around 300 gallons per hour through my tank. what size Power head am I going to need?

(i also have a cpr bak pak 2 that is pumping water if that matters.)

 

[malkore]

most don't count the skimmer current towards total water flow. You want at least 370gallons per hour of circulation. A small powerhead of around 100gph at the opposite end fo the tank from the magnum outflow should be sufficient.

 

[Atari]

I'd get a MJ600 or if this is a reef then a MJ900.

 

[fishfreek]

400-600GPH

Each tank is unique and how you have it aquasacped is gonna have a big impact on what your 'total' flow is needed. You could have 1000GPH in there and still have deadspots of movement if the outputs and aquascaping is wrong.

 

[RocketSeason]

just an update. I went with the smaller Maxi-jet 400 bringing my total waterflow up to between 400 and 450 GPH on a 37 gallon cube.

I've got the intake and output tubes for the Magnum 350 at oppisite ends of the tank which really helps.

We will see how this works. I shouldnt have any dead areas at all. hopefully everyone in the tank will like it!