Return Pump: Sump to Tank Questions

Sylock · 10-07-2002, 11:03 AM

Ok, I've got 3 more things to get for my 75 gallon tank to be up and running 1) Stand/Canopy 2) Lights 3) Return Pump.

Reading up on the Mag-Drive 12 I see that at a 5 foot height (4 foot + 1 for a 90 degree elbow) that I should get 1100 gallon per hour. That's 1 gallon every 3 seconds and a turnover of almost 15 times the display tanks volume ( I have a 35 gallon tank as a sump, will probably have 20-25 gallons in it). Is that too much return? I was going to have it hit the front glass, but I'm afraid that it will just kick sand all over the place (I'll also have a 4-6" DSB) and be to much water movement. I'll also have a couple (2-3) Maxi-Jet 1200 (300+ gph) in the display tank. Should I move down to the Mag-Drive 7 or 9 1/2? Thanks for your time!

Reedman · 10-07-2002, 01:13 PM

You can have that much flow in a 75, you just have to split the return into several returns. In fact, I have had better luck with higher flow rates. So much so, that I am going to incorporate a closed loop powered by an Ampmaster 3000 on a 75 gallon tank. I will have 4 outlets though.

Good luck

balakoth · 10-07-2002, 07:01 PM

Heres a question. What type of overflow arey ou using and can it handle that flow rate.

Doug1 · 10-08-2002, 02:59 AM

BAlakoth has a point, can your overflow handle the volume?
I have a Mag 1800@4" on my 75 (4 returns and its not a lot IMO

Mouse · 10-08-2002, 08:11 AM

What do you plan to keep in the tank? SPS would love the volume, but softies not so much....