overflow rate 50g

somethingphishy · 02/12/2010, 04:42 PM

will be setting up a 50g 36x18x18 sps tank with a 20l sump....not looking to drill the tank...will a cpr 300gph overflow prefilter/mag 3 return be enough? too add
the tank will contain 3-5 modded maxijets on wave timers....

jdm18honda · 02/12/2010, 05:42 PM

Should be good with the maxijets

jdm18honda · 02/12/2010, 05:44 PM

I have a 75 tall with a quiet on 4000 and 3000 as return and and two hydro 3's so I hvr lots of flow

somethingphishy · 02/13/2010, 08:43 AM

mainly trying to find out if that is enough flow going through the sump?

josh holt · 02/13/2010, 01:55 PM

me personally would go with a 600gph overflow and a mag5 or something comparable.

driftin · 02/13/2010, 05:36 PM

What kind of skimmer will you have? Could match the overflow and pump to the skimmer.

somethingphishy · 02/15/2010, 10:07 AM

still deciding on what skimmer to go with

SpencerG · 02/15/2010, 07:56 PM

I've got a 300 gph eshopps overflow on a 40 breeder (same footprint, just 2" shorter), with a return pump that is ~ to a mag 3 (via aqua 1300). Plenty of flow. I have a Tunze 9010 and a bunch of chaeto in the sump, and the skimmer pulls a lot while the chaeto grows like kudzu. I've been very pleased with this setup, and the tank is doing well.

With the setup you're proposing, you should have 250-300 gph going through your sump, or 5-6X your tank volume. Some folks would say that is almost more flow than is optimal, while others would say crank it up. It also depends on what you want to put in your sump - e.g. refugium - which may dictate lower or higher flow. Have fun!

somethingphishy · 02/16/2010, 06:51 AM

i have a hang on refugium for the set up but will attemp to grow macro in the sump depending on the footprint left over after the skimmer is added...leaning toward the bubble magus nac6 for the skimmer (which seems to have a small footprint)...if i can utilize the sump to grow maco the hang on ref. will not be used

02/12/2010, 04:42 PM	#1
somethingphishy Registered Member Join Date: Apr 2004 Location: Fleetwood, pa Posts: 852	overflow rate 50g will be setting up a 50g 36x18x18 sps tank with a 20l sump....not looking to drill the tank...will a cpr 300gph overflow prefilter/mag 3 return be enough? too add the tank will contain 3-5 modded maxijets on wave timers.... __________________ "Set the gearshift for the high gear Of your soul, you've got to run like An antelope out of control!" Current Tank Info: 50g/20l sump

02/13/2010, 08:43 AM	#4
somethingphishy Registered Member Join Date: Apr 2004 Location: Fleetwood, pa Posts: 852	mainly trying to find out if that is enough flow going through the sump? __________________ "Set the gearshift for the high gear Of your soul, you've got to run like An antelope out of control!" Current Tank Info: 50g/20l sump Last edited by somethingphishy; 02/13/2010 at 08:56 AM.

02/13/2010, 01:55 PM	#5
josh holt Registered Member Join Date: Mar 2006 Location: redding Posts: 322	me personally would go with a 600gph overflow and a mag5 or something comparable. __________________ reef tanks are such a headache yet i keep coming back to them. Current Tank Info: 40 gal sps tank (36"Lx15"Dx18"H), dual 175 mh lights w 15k iwasaki bulbs, 20gal sump, bubble magus nac6 skimmer, blue line hd external return pump feeding the tank through two 1/2" penductors, two koralia 1 powerheads + more on the wish list.

02/13/2010, 05:36 PM	#6
driftin Registered Member Join Date: Jul 2004 Location: Chicago Posts: 1,247	What kind of skimmer will you have? Could match the overflow and pump to the skimmer. __________________ -Jim Current Tank Info: 70 gal custom room divider

02/15/2010, 10:07 AM	#7
somethingphishy Registered Member Join Date: Apr 2004 Location: Fleetwood, pa Posts: 852	still deciding on what skimmer to go with __________________ "Set the gearshift for the high gear Of your soul, you've got to run like An antelope out of control!" Current Tank Info: 50g/20l sump

02/12/2010, 05:42 PM	#2
jdm18honda Registered Member Join Date: Feb 2008 Location: jacksonville fl Posts: 327	Should be good with the maxijets

02/12/2010, 05:44 PM	#3
jdm18honda Registered Member Join Date: Feb 2008 Location: jacksonville fl Posts: 327	I have a 75 tall with a quiet on 4000 and 3000 as return and and two hydro 3's so I hvr lots of flow

02/15/2010, 07:56 PM	#8
SpencerG Registered Member Join Date: Oct 2007 Location: New Orleans Posts: 356	I've got a 300 gph eshopps overflow on a 40 breeder (same footprint, just 2" shorter), with a return pump that is ~ to a mag 3 (via aqua 1300). Plenty of flow. I have a Tunze 9010 and a bunch of chaeto in the sump, and the skimmer pulls a lot while the chaeto grows like kudzu. I've been very pleased with this setup, and the tank is doing well. With the setup you're proposing, you should have 250-300 gph going through your sump, or 5-6X your tank volume. Some folks would say that is almost more flow than is optimal, while others would say crank it up. It also depends on what you want to put in your sump - e.g. refugium - which may dictate lower or higher flow. Have fun!

02/16/2010, 06:51 AM	#9
somethingphishy Registered Member Join Date: Apr 2004 Location: Fleetwood, pa Posts: 852	i have a hang on refugium for the set up but will attemp to grow macro in the sump depending on the footprint left over after the skimmer is added...leaning toward the bubble magus nac6 for the skimmer (which seems to have a small footprint)...if i can utilize the sump to grow maco the hang on ref. will not be used __________________ "Set the gearshift for the high gear Of your soul, you've got to run like An antelope out of control!" Current Tank Info: 50g/20l sump