Manhattan Reefs - View Single Post - Water movement, what is best for our reef

**nanoreefer22** · 02-16-2006, 12:58 AM

Tony,
Just to get ya thinking, with a mag 9.5 split 4 ways you're going to have very little flow coming out of each individual nozzle. A 75g is a long tank, I doubt the flow will make it to the opposing ends, after headloss and all the elbows you put in. You're probably going to need more to sweep the bottom of the tank than a mj900, so you might want to look into something more there as well.

Set up the tank first and set the flow how you have it in the diagram, then pick out your dead spots and either change the flow pattern or add a powerhead(small) to the mix and call it a day.
-Kris

EDIT
Don't forget to factor in your rock structure, this will greatly change the flow in the tank.

02-16-2006, 12:58 AM	#8
nanoreefer22 YoYa Join Date: Jan 2005 Location: Park Slope, Brooklyn Posts: 10,211 Reefer Ratings: (78) Friends: (22)	Tony, Just to get ya thinking, with a mag 9.5 split 4 ways you're going to have very little flow coming out of each individual nozzle. A 75g is a long tank, I doubt the flow will make it to the opposing ends, after headloss and all the elbows you put in. You're probably going to need more to sweep the bottom of the tank than a mj900, so you might want to look into something more there as well. Set up the tank first and set the flow how you have it in the diagram, then pick out your dead spots and either change the flow pattern or add a powerhead(small) to the mix and call it a day. -Kris EDIT Don't forget to factor in your rock structure, this will greatly change the flow in the tank. __________________ Kris Starting Fresh. Tired of the Boring Old Way To Do Things. Stay Tuned. Last edited by nanoreefer22; 02-16-2006 at 01:02 AM.