Powerheads for 215g

[txaggies07]

I have a 215g that I need powerheads for. I currently have a Koralia 3 and a MJ1200 w/ the mod to make it 1600gph from my 120g. I am not looking to spend too much money.

 

Is 20x still the standard? If so, that is 4300gph. I have 1600 (MJ1200)+850(K3)+500(return pump) = 2950.

 

Would just getting another MJ1200 w/ mod work...but leave out the Koralia 3. This would give me about 3700 gph of flow.

[steveoutlaw]

I don't think there is a rule. It all depends on what you're keeping. Get another MJmod and see how it does. I'd wait to see if there is too much flow before removing the Koralia.

[zoozilla]

I don't think there is a rule. It all depends on what you're keeping. Get another MJmod and see how it does. I'd wait to see if there is too much flow before removing the Koralia.

 

+1. From what i've read and talking to some other reefers, the minimum is typically 10 - 20x times the water volume. But, for the most part, the amount of flow +/- is dictated by the inhabitants of the tank.

[epleeds]

i saw on your build thread that your using a hob overflow. have you filled it up with water yet? have you thought of drilling the tank. I have a hob on my 75 right now and would have loved to drill it before i set it up. just a thought. then you can have more turn over thru your sump.

[txaggies07]

I have already filled it partially with water. The bottom glass is tempered. I have a smaller version of the overflow on my 65g and have been happy with it. The eshopps ones work very well. I had a RR 120g, but I didn't like how much space in the display I lost.

[Grav]

Dude!!!! Aaron!

 

How are you man? We miss you. I miss you!! Come back!

 

If you want lots of flow cheap, go with the MJ1200 + mod. New propeller does 2400 gph. I really like the vortechs but big $$$.

 

10x to 20x is pretty good. Of course it depends on what you want to keep.

[txaggies07]

I decided to do 4xMJ1200 w/ mod.

 

There is no way I can afford vortechs. My wife would shoot me. I miss the fish tank stuff. WAMAS is much more active the MARSH out in Houston.

 

I also can't believe that I got a 215g. I sold my 120g and got out all the money I put into it. I bought a 215g that was a pretty good deal. It isnt RR, but I decided I would rather do the eshopps overflow than lose the space in the tank. My tangs love the new space.

[txaggies07]

I didn't realize the MJ1200 mod came with 2 propellers. It looks like I will have ~8400 gph instead of the ~6400 gph I though I would.

[sdah0414]

I'm interested to see how your pumps are working with the upgrade mod. I tried two different 1200s and they both rattled so much I had to take them out. It wasn't really that bad but the vibration was definitely noticable. Do you notice any noise with yours?

[txaggies07]

I already have a 1 MJ 1200 w mod that I was using on my 120g. It works great. Make sure the impeller sits in the little hole in the encasing.

[lhcorals]

Just watch the MJ's, the one i had constantly wanted to run backwards. I had a couple of fish that would bed down near it. Sad to say it reversed during the night and the fish were no more.

[txaggies07]

Weird. I never turn mine off.

[steveoutlaw]

Well, if you still have time to drill, the glassholes overflows are great and don't take up much space at all......plus you still get the good surface skimming.