View Full Version : mag 5 vs. mag 18
foundanewglory
04-22-2009, 01:35 PM
I have both of these pumps....I like the 5 since I have a warm and fuzzy the pipes won't blow and the pump can work to its full potential tho it kind of flows out of the return like a water hose turned on half way. the mag 18 of course is a beast and it sprays out of the return pipe with more pressure. but it of course is constrained in a 3/4 inch pipe... I have a 150 gal. which should I use?
jeff@zina.com
04-22-2009, 03:33 PM
Mag 5.
Jeff
KDodds
04-23-2009, 07:59 AM
IMO, the 5, the 18 would be approaching reef tank turnovers and velocities.
rbarn
05-03-2009, 01:50 PM
Put the 5 and 18 on ebay and run a Mag 7 ?
What kind of head height do you have ?
Want at least 3-5x/hr turn over.
That would be 500-800 gal/hr at your head height. More doesnt hurt either
although most people say Discus want calmer water.
Great flow chart for the Mags on MarineDepot
http://www.marinedepot.com/ps_AquariumPage~PageAlias~powerheads_pumps_danner_ mag_drive_supreme.html
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