What's your turnover rate in your sps tank?

Felixc395

Registered Member
I'm just trying to get an idea on how much glow I actually need in my new 75 gallon.

Please post what your turnover rate is in your sps aquarium, what pumps you use for it, and how you think your sps respond to the flow.

Thanks everyone!
 
My tank is a 29 gallon. I run an MP10 at or near 100%, (1500gph), plus a rio 1700 return, pushing about 300gph at this height. So, my turnover is about 60x at least.

I'd have a little more if I could. Or if I could have two MP10's each running at maybe 75%, to better "arrange" the flow ... but it's not possible in my tank so this will have to do.
 
a little over 90x in my 58, but will add a little more in the near future. Flow, IMHO, is just as important as light for SPS.
 
4 VorTech ESMP40s @ 3000 gph each
1 1200 gph closed loop
1 600 gph return pump

Approx. 13500 gph on my 180 gal display as my return pump supplies
my fuge with a very small flow rate.

I also have a power head in my fuge and a G4X skimmer in my sump.

65X to 70X display volume?

I think I need more! :D
 
In my 45, I have two seio 820s, 820 gph each, and my return pump, a rio 12hf750 gph, pumping ~450 gph(maybe more) to the display. That gives me just over 45x. Right now things are fine, but as things start growing in and blocking flow to other corals and parts of themselves, I'll need more.
 
Not sure what the exact flow rates are. I run a tunze nano wavemaker along the length of my 36x24x18 and 2 mp10's (at 50% on reef crest mode) across the width of the tank to rid any idle spots.
 
FWIW you should NEVER count your return as flow in your tank

i do believe that the return counts as flow, granted you have to subtract head loss, but it is still creating movement through the display. that would be equivalent of saying that a closed loop would not be considered as flow in the display, just because the pump is external!!:hammer:
 
i do believe that the return counts as flow, granted you have to subtract head loss, but it is still creating movement through the display. that would be equivalent of saying that a closed loop would not be considered as flow in the display, just because the pump is external!!:hammer:

......my thoughts were ment to help the op and are a good way to be safe with smaller tanks if your running the long island aquarium you probablly use return pumps as means of flow considering they prolly move thousands of gallons an hour

no it wouldnt be the same, (and it has nothing to do with internal or external) with a closed loop as its sole purpose is to create FLOW.....and is properlly sized for such, a return pump is nothing like that...........

....ie, in my tank (a 37gall) i run a mag 7 which is 700 gph, but when you count the 4 feet of head height its more like 280-320 and thats wide open and brand new, with no sludge build up in the plumbing which will slow it down and no detritus in the foam filter on the pump and no calcium build up on the impellar itself all of which can and will slow the pump to a trickle.............


......furthermore i really believe that flow to the sump should be somewhere between 5-10 times your TOTAL water volume, in otherwords just use your return as a means to transport water to your sump so the bones of your filtration system can have a chance to work with the dirty water for as long as possible, slow flow sumps give reactors and skimmers more time to do their jobs correctly and also cut down on micro bubbles and salt spray/creep..........

......using my tank as an example i have a mp 40 which is 3000 gph giving me somewhere around 80 times turnover so what is my 300 gph from my return really going to add to that????????................and using your mentality people with hang on skimmers and fuges should count those pumps as flow too?????????
 
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no it wouldnt be the same, (and it has nothing to do with internal or external) with a closed loop as its sole purpose is to create FLOW.....and is properlly sized for such, a return pump is nothing like that...........

....ie, in my tank (a 37gall) i run a mag 7 which is 700 gph, but when you count the 4 feet of head height its more like 280-320 and thats wide open and brand new, with no sludge build up in the plumbing which will slow it down and no detritus in the foam filter on the pump and no calcium build up in the pump itself all of which can and will slow the pump to a trickle.............


......furthermore i really believe that flow to the sump should be somewhere between 5-10 times your TOTAL water volume, in otherwords just use your return as a means to transport water to your sump so the bones of your filtration system can have a chance to work with the dirty water for as long as possible, slow flow sumps give reactors and skimmers more time to do their jobs correctly and also cut down on micro bubbles and salt spray/creep..........

......using my tank as an example i have a mp 40 which is 3000 gph giving me somewhere around 80 times turnover so what is my 300 gph from my return really going to add to that????????................and using your mentality people with hang on skimmers and fuges should count those pumps as flow too?????????

Following your logic, if I had a single pump for my return, no powerheads in the system, going into a splitter and alternating the flow and this pump was putting out 5000 gph, it could not be counted as flow, even though it was the only water mover in the system? So you are saying that tank would have zero flow, simply because the water movement came from the return? Really? Really?
 
no it wouldnt be the same, (and it has nothing to do with internal or external) with a closed loop as its sole purpose is to create FLOW.....and is properlly sized for such, a return pump is nothing like that...........

....ie, in my tank (a 37gall) i run a mag 7 which is 700 gph, but when you count the 4 feet of head height its more like 280-320 and thats wide open and brand new, with no sludge build up in the plumbing which will slow it down and no detritus in the foam filter on the pump and no calcium build up in the pump itself all of which can and will slow the pump to a trickle.............


......furthermore i really believe that flow to the sump should be somewhere between 5-10 times your TOTAL water volume, in otherwords just use your return as a means to transport water to your sump so the bones of your filtration system can have a chance to work with the dirty water for as long as possible, slow flow sumps give reactors and skimmers more time to do their jobs correctly and also cut down on micro bubbles and salt spray/creep..........

......using my tank as an example i have a mp 40 which is 3000 gph giving me somewhere around 80 times turnover so what is my 300 gph from my return really going to add to that????????................and using your mentality people with hang on skimmers and fuges should count those pumps as flow too?????????


Why should they not? Flow is flow is flow. Coral doesn't care what generated it.

As to returns ... For my part, I have a Herbie drain. So if my return flow was slowing down even a tiny bit, I'd know it immediately and have to adjust the valve. Granted, I dismantle and clean the pump twice a year or so, but it ain't slowing down. Maybe YOUR return is clogged and unreliable, but not everyone's is.

Your blanket statement is badly flawed.
 
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