Too much flow?

lolgranny · 11/11/2010, 12:40 PM

I have a BB 40g breeder. Have a Mag 9.5 for return, turned down 25% at 4' of head. So im assuming that its about 450gph in the display. Also have a koralia#3 and 2koralia#2's

Im keeping all sps.

~3000gph going through the bare bottom display, no dead spots anywhere.

I have both the K#2's in the right corner facing the front to create random flow. The K#3 in the back left corner blowing across the back wall. The return is on the left facing the front.

Does anyone see a issue with this? I have decent PE, but some look like they want less. I am unsure.

Thanks

David

lolgranny · 11/11/2010, 11:43 PM

Anyone?

BuckeyeTodd · 11/11/2010, 11:49 PM

On the high side but should be fine....see how it goes, pull one of the 2's out if corals look stressed

aleonn · 11/12/2010, 04:47 AM

Seems like lots of flow, but should be fine as long as all the SPS corals are opening up. You can always aim the powerheads towards the surface as well.

rivoth · 11/12/2010, 10:02 AM

To be honest it's really hard to get good information about how to create good flow in your tank. It's greatly complicated by the walls of rock that exist in most tanks. The following article has influenced me the most, but I feel it still leaves me hanging.

http://www.advancedaquarist.com/2007/1/aafeature

blennymower · 11/12/2010, 10:51 AM

I think it's pretty hard to tell you. You're gonna have to just see how it works out. A good rule of thumb is if your corals look like they're going through a hurricane, then toning it down might be a good idea.

fishsuse29 · 11/12/2010, 11:31 AM

I think you have the perfect amount of flow. In my 40br I have a mag 7 return going full go along with a Koralia evo 1050 and a 750. This is perfect for my mixed reef but as I shift more toward SPS I will up upgrading the 750 to a 1050 or maybe even a 1400

11/11/2010, 12:40 PM	#1
lolgranny The DQ King Join Date: Apr 2010 Location: Chicago (McHenry) Posts: 2,414	Too much flow? I have a BB 40g breeder. Have a Mag 9.5 for return, turned down 25% at 4' of head. So im assuming that its about 450gph in the display. Also have a koralia#3 and 2koralia#2's Im keeping all sps. ~3000gph going through the bare bottom display, no dead spots anywhere. I have both the K#2's in the right corner facing the front to create random flow. The K#3 in the back left corner blowing across the back wall. The return is on the left facing the front. Does anyone see a issue with this? I have decent PE, but some look like they want less. I am unsure. Thanks David __________________ -Dave Current Tank Info: 40g RIP. 300g system, 180g display.

11/12/2010, 10:51 AM	#6
blennymower Registered Member Join Date: Nov 2008 Location: Miami, Florida Posts: 1,477	I think it's pretty hard to tell you. You're gonna have to just see how it works out. A good rule of thumb is if your corals look like they're going through a hurricane, then toning it down might be a good idea. __________________ Check out my tank. Current Tank Info: 30G Nano Rimless

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11/11/2010, 11:43 PM	#2
lolgranny The DQ King Join Date: Apr 2010 Location: Chicago (McHenry) Posts: 2,414	Anyone? __________________ -Dave Current Tank Info: 40g RIP. 300g system, 180g display.

11/11/2010, 11:49 PM	#3
BuckeyeTodd Registered Member Join Date: Apr 2010 Location: Orlando Posts: 1,054	On the high side but should be fine....see how it goes, pull one of the 2's out if corals look stressed

11/12/2010, 04:47 AM	#4
aleonn Registered Member Join Date: Aug 2010 Posts: 4,041	Seems like lots of flow, but should be fine as long as all the SPS corals are opening up. You can always aim the powerheads towards the surface as well.

11/12/2010, 10:02 AM	#5
rivoth Registered Member Join Date: Mar 2008 Location: New Mexico, USA Posts: 267	To be honest it's really hard to get good information about how to create good flow in your tank. It's greatly complicated by the walls of rock that exist in most tanks. The following article has influenced me the most, but I feel it still leaves me hanging. http://www.advancedaquarist.com/2007/1/aafeature

11/12/2010, 11:31 AM	#7
fishsuse29 Registered Member Join Date: Dec 2001 Location: Boston Posts: 374	I think you have the perfect amount of flow. In my 40br I have a mag 7 return going full go along with a Koralia evo 1050 and a 750. This is perfect for my mixed reef but as I shift more toward SPS I will up upgrading the 750 to a 1050 or maybe even a 1400