Flow

[sinkingbeach]

I was just checking out the Tank of the Month on RC http://reefkeeping.com/issues/2008-05/totm/index.php

I'm astonished at how much flow is in this tank, sure they aren't all on at the same time but my calculations says roughly 153x, thought I was doing well with 35x, was curious as to how much you are using?

 

[Phyl]

2 tunze * 3000 = 6000
1000gph overflow
2 hydor 4 @ 800gph = 1600

180 with 8600 gph = 47gph'ish, I guess since I'm not sure what to put for the hydors (550-1400).

 

[Percula_Clown]

125 with 2 koralia 4's
Plus the return, mag 9.5 but by the time it gets to the top, its probably 400 i am guessing.
2800/125 = 22.4 turn over rate.

 

[Patriot76]

180g DT-

4 Koralia Hydor 4's- 3600-4800gph (depending on who you ask)

Mag 9.5 return pump- rated at 950gph probably about 500-600 gph after head loss.

Fluval FX5- 1000gph- realistically probably about 500gph.

So anywhere from 25-33 turn over rate for the main tank. i think i am going to add a couple more power heads to hit some dead spots (rear corners on the side of the the overflow boxes)

the water also circulates from the sump through a 55g refugium with a Mag-7 pump

 

[Hawkeye]

I was just checking out the Tank of the Month on RC http://reefkeeping.com/issues/2008-05/totm/index.php

I'm astonished at how much flow is in this tank, sure they aren't all on at the same time but my calculations says roughly 153x, thought I was doing well with 35x, was curious as to how much you are using?

My calculations on that tank show:
6301x2 = 15850 gph
6201x2 = 10566 gph
6212x4 = 1268 gph

Divided by the display of 308 = 89x

I'm not factoring in the return, but I am also over calculating the tunze, since he has the multicontroller, and most folks do the 30%/100% switch or similar. So they are not all 4 on 100% of the time. Also I don't think anyone would factor the waveboxes in (the 6212), but I included it.

With flow that strong though -it will be an issue for those with small sand and any of those who would prefer the soft corals instead of all SPS.

 

[MikeNapoli]

My tank is 20x at night cause most of my pumps are off with only 1 staying on with over flows.

During the day it's all over the place. I have 6 Korallias of all different sizes and the returns. All on timers. Anywhere from 35x to 65x over.

 

[Patriot76]

My tank is 20x at night cause most of my pumps are off with only 1 staying on with over flows.

During the day it's all over the place. I have 6 Korallias of all different sizes and the returns. All on timers. Anywhere from 35x to 65x over.

you dont have any problems with Korallias starting & stopping. i didnt think they were ideal for that type of use. i know mine are noisy when starting.

 

[MikeNapoli]

I do one hour on and one hour off and they over lap for a few minutes at a time.

It's not a Tunze but it works for now.