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JetCat USA · 08/11/2007, 02:03 AM

How Good Is It? & How Much PO4 Will It Take Out Before It's Exhausted?

well a fellow reefer on the board here posted a thread that got my interest peaked with the removal of PO4 from one of my FO systems, as well as wondering how quickly the PhosBan would exhaust its self...........to make a long story short.........180g tank w/ 225g system volume, Tank is BB and has roughly 150 lbs of LR in it........hasn't has a water changed sense Oct 2004 and has had all top offs done with tap water. Coralline hasn't showed much signs of growth for several yrs now, but isn't dieing back either.

Tank has 3 large tangs, a 6 yr old pair of Clarkii's, a huge female Tomato clown and a Dusky damsel in it. it would be an under statement to say they are Fat As Ticks, they are fed 5-6 times per day a varied diet of just about every type of food offered in the way of flake/cyclop-eeze/every type of frozen food/golden pearls/etc........

the NO3 levels with a PinPoint monitor are 23ppm
PO4 at a nice 2.94ppm with a Hanna Low Res Phosphate Colorimeter.

i took a PhosBan 150 reactor and added 2 cups of PhosBan to it and slowly cracked open the valve till a mini-jet400 started to fluidized the media.

the start of this was at 1930hrs 09 Aug 2007 w/ PO4 @ 2.94ppm (i didn't take a pic here, wish i had of)

an hour later at 2030hrs PO4 had dropped to 2.05ppm
[img]http://i10.*******.com/525pvkz.jpg[/img]

at 2330hrs it had dropped to 1.32ppm
[img]http://i17.*******.com/6ahxhrq.jpg[/img]

at 0730hrs 10 Aug 2007 the PO4 tested @ 0.72ppm
[img]http://i11.*******.com/6890592.jpg[/img]

that afternoon at 1600hrs PO4 was @ 0.45ppm
[img]http://i12.*******.com/4xm2w4g.jpg[/img]

about 30 min ago at 0230hrs 11 Aug 2007 PO4 @ 0.36ppm
[img]http://i13.*******.com/52uxs9i.jpg[/img]

for the volume of water in this system it seams the media is able to absorb a pretty decent amount of PO4. I'll keep testing till it stops dropping and then i intend to put the media into some RO/DI water (it tests 0.00ppm) and see if the media will leach the PO4 back out as allot of posts have claimed it will.

08/11/2007, 02:03 AM	#1
JetCat USA Moved On Join Date: Jun 2004 Posts: 2,847	GFO (PhosBan) Just How Good Is It?? How Good Is It? & How Much PO4 Will It Take Out Before It's Exhausted? well a fellow reefer on the board here posted a thread that got my interest peaked with the removal of PO4 from one of my FO systems, as well as wondering how quickly the PhosBan would exhaust its self...........to make a long story short.........180g tank w/ 225g system volume, Tank is BB and has roughly 150 lbs of LR in it........hasn't has a water changed sense Oct 2004 and has had all top offs done with tap water. Coralline hasn't showed much signs of growth for several yrs now, but isn't dieing back either. Tank has 3 large tangs, a 6 yr old pair of Clarkii's, a huge female Tomato clown and a Dusky damsel in it. it would be an under statement to say they are Fat As Ticks, they are fed 5-6 times per day a varied diet of just about every type of food offered in the way of flake/cyclop-eeze/every type of frozen food/golden pearls/etc........ the NO3 levels with a PinPoint monitor are 23ppm PO4 at a nice 2.94ppm with a Hanna Low Res Phosphate Colorimeter. i took a PhosBan 150 reactor and added 2 cups of PhosBan to it and slowly cracked open the valve till a mini-jet400 started to fluidized the media. the start of this was at 1930hrs 09 Aug 2007 w/ PO4 @ 2.94ppm (i didn't take a pic here, wish i had of) an hour later at 2030hrs PO4 had dropped to 2.05ppm [img]http://i10.*****.com/525pvkz.jpg[/img] at 2330hrs it had dropped to 1.32ppm [img]http://i17.***.com/6ahxhrq.jpg[/img] at 0730hrs 10 Aug 2007 the PO4 tested @ 0.72ppm [img]http://i11.***.com/6890592.jpg[/img] that afternoon at 1600hrs PO4 was @ 0.45ppm [img]http://i12.***.com/4xm2w4g.jpg[/img] about 30 min ago at 0230hrs 11 Aug 2007 PO4 @ 0.36ppm [img]http://i13.*****.com/52uxs9i.jpg[/img] for the volume of water in this system it seams the media is able to absorb a pretty decent amount of PO4. I'll keep testing till it stops dropping and then i intend to put the media into some RO/DI water (it tests 0.00ppm) and see if the media will leach the PO4 back out as allot of posts have claimed it will.