What is your turnover rate?
- Thread starter jtwilson
- Start date
coolguy818
Member
its actually mjmods dot com.
Pretty easy to mod.
Pretty easy to mod.
vito525
Member
Originally Posted by Coolguy818
92x in my 70g........
2 Modded Maxi-Jet 1200 = 2400gph x 2 = 4800gph
2 Maxi-Jet 1200 (behind the rock wall) = 295gph x 2 = 590gph
1 Lifegard 3000 - 800gph - head room = 650gph
1 Rio 10HF - 660gph - head room = 400gph
Total of - 6440gph/70g tank = 92x turnover.
Tank top half is a heavy load of SPS and the bottom is Zoas, Ricordia, Duncans and Clams......
That should put me in the lead......
How do you Mod a Maxi-Jet 1200? I have 4 of those in my 75 and would love to boost the output.
R
reefernana
Guest
I have 20X in my 29g biocube. Eventually, I plan on replacing my stock pump for more gph. I split the return so it's slowed down the output, but it's still enough to keep my surface water agitated. Then I have a MJ900 PH behind my rocks to give a horizontal flow. Everything moves and my maroon loves surfing!
aquaknight
Active Member
About 23x on my 29, mostly softies and LPS. A Mag 9.5 as the return, feeds the fuge too, so about 500 into the tank and a Rio 800 ph (180 gph I think?). A bit over 60x on my 125, will be predator fish and SPS. 4000gph center wave2k, Mag 18 throttled back to 1100gph, and 2 Koralia 4's. Right now I just drop some pellets into an empty tank, I just love watching the flow, it's the most random/best flow I've ever seen, the entire tank has good current everywhere...
aquaknight
Active Member
If you're going to do it that way, do it like this (gallonage/gph) * 60 = mintues. You'll get a number you can wrap your head around instead of a tiny fraction.
So mine are, my 29, 2.55 and my 125, 0.98. So, my on 125, every .98 of a minute the water is getting 'turned over.'
So mine are, my 29, 2.55 and my 125, 0.98. So, my on 125, every .98 of a minute the water is getting 'turned over.'
frankthetank
Active Member
I thought I knew how to calculate this... now, I'm thoroughly confused with the last two posts.
mfp1016
Member
I'd also like to add, that in that same book, Aquatic Systems Engineering, turning your tank over does not involve powerheads and flow enhancers. The point of a turnover calculation is to see how long it takes for the grand majority of your water to pass through your sump, and thus should only include the inlet volumetric flow rate, and outlet volumetric flow rate.
Calcs which include powerheads aren't turn over calcs. Rather, these calcs are used to determine how long it takes for a chemical/supplement to be evenly disperesed in your tank. Even still this is a very simple approach. Normally, differential mass transfer theory would be applied and this would boil down to a differential equation, LHS vfr differential over time differntial, RHS mass transfer differential.
Calcs which include powerheads aren't turn over calcs. Rather, these calcs are used to determine how long it takes for a chemical/supplement to be evenly disperesed in your tank. Even still this is a very simple approach. Normally, differential mass transfer theory would be applied and this would boil down to a differential equation, LHS vfr differential over time differntial, RHS mass transfer differential.
rainmkr07
Member
Originally Posted by vito525
How do you Mod a Maxi-Jet 1200? I have 4 of those in my 75 and would love to boost the output.
I don't have the mod yet, but some day I would love to get them. The mod raises a Maxi-Jet 1200 from 295GPH to 2400GPH. WOW. That's just sick.
*thinking to self, if I have 4 MJs, mod them, I would go from 1180GPH to 9600GPH... That would change my 75 gallon tank turnover from 21X to 133X... WOW... That's some serious water movement. AND I would be ahead of CoolGuy's 92X... Sweet.
* End of thought to self.
How do you Mod a Maxi-Jet 1200? I have 4 of those in my 75 and would love to boost the output.
I don't have the mod yet, but some day I would love to get them. The mod raises a Maxi-Jet 1200 from 295GPH to 2400GPH. WOW. That's just sick.
*thinking to self, if I have 4 MJs, mod them, I would go from 1180GPH to 9600GPH... That would change my 75 gallon tank turnover from 21X to 133X... WOW... That's some serious water movement. AND I would be ahead of CoolGuy's 92X... Sweet.
coolguy818
Member
Originally Posted by rainmkr07
I don't have the mod yet, but some day I would love to get them. The mod raises a Maxi-Jet 1200 from 295GPH to 2400GPH. WOW. That's just sick.
*thinking to self, if I have 4 MJs, mod them, I would go from 1180GPH to 9600GPH... That would change my 75 gallon tank turnover from 21X to 133X... WOW... That's some serious water movement. AND I would be ahead of CoolGuy's 92X... Sweet.
* End of thought to self.
That some serious water movement...... I had the hardest time with positioning and aiming the MJ's, I had to mickey mouse my brackets with zip ties. At first I had water flying out of the tank.... Encrusted Corals being toppled over. Unti I learned that by putting the powerheads in the fron of the tank pointing towards my rock wall. Completely eliminated any dead spots i might have. And the corals love it.
I don't have the mod yet, but some day I would love to get them. The mod raises a Maxi-Jet 1200 from 295GPH to 2400GPH. WOW. That's just sick.
*thinking to self, if I have 4 MJs, mod them, I would go from 1180GPH to 9600GPH... That would change my 75 gallon tank turnover from 21X to 133X... WOW... That's some serious water movement. AND I would be ahead of CoolGuy's 92X... Sweet.
That some serious water movement...... I had the hardest time with positioning and aiming the MJ's, I had to mickey mouse my brackets with zip ties. At first I had water flying out of the tank.... Encrusted Corals being toppled over. Unti I learned that by putting the powerheads in the fron of the tank pointing towards my rock wall. Completely eliminated any dead spots i might have. And the corals love it.
R
reefernana
Guest
Originally Posted by mfp1016
I noticed that alot of people's calculations are off, units!!!! Don't divide GPH/G that gives you inverse hours, I believe the better way to be this: gallonage/gph = hours (number of hours it takes to turn your tank over).
Ref: Aquatic Systems Engineering
If you want to get really technical, you also have to go by actual water content, not by how big the tank is.
I noticed that alot of people's calculations are off, units!!!! Don't divide GPH/G that gives you inverse hours, I believe the better way to be this: gallonage/gph = hours (number of hours it takes to turn your tank over).
Ref: Aquatic Systems Engineering
If you want to get really technical, you also have to go by actual water content, not by how big the tank is.