The need for PO4 remover from CR Effluent

[AlfaRomeo]

Hi Guys,

A new idea from Europe on the use of PO4 remover from the CR effluent.

http://reefcentral.com/forums/showthread.p...threadid=476939

Enjoy!

[weisoon]

Most animals that calcify to form calcium structures need PO4 uptake during calcification. As such after they die and their shells collected to be use for CR media, PO4 will be released during breaking down in the low PH environment in the CR. BTW, read somewhere that ARM has been tested to release the least PO4 during use in CR.

[typrobin]

Most animals that calcify to form calcium structures need PO4 uptake during calcification. As such after they die and their shells collected to be use for CR media, PO4 will be released during breaking down in the low PH environment in the CR. BTW, read somewhere that ARM has been tested to release the least PO4 during use in CR.

weisoon, not only are u the hai cheong salesman. ..u are REALLY REALLY very knowledgeable...

it seems like u know even the most extreme things!!!

so glad that u are in our club...

i remember reading it somewhere too...

but as a matter of fact, if u already have FR / PO4 media running in your tank, i think there is no need for an additional set just for the CR..

or if u have the magnificent ZEO-thing, then i believe the PO4 problem should be more or less solved as well...

that's wat i think lah...

[lightningstrike]

for the zeovit system, running carbon in the system wif zeovit is still a neccessity/recommendation. carbon somehow or rather, still leeches PO4. although zeovit has strongly advised against the use of PO4 removal media, e.g. Rowaphos, has anyone been doing so?

coz i know a couple of zeovit reefers still run Rowaphos in their FRs and so far to no ill effects.

[AlfaRomeo]

The theory is that in the advanced stages of Zeovit, PO4 and NO3 will be 0.00 and every source of PO4 introduction should be minimised as far as possible.

Examples are: Top-up water, Effluent from CR Media, GAC, Food.

[lightningstrike]

The theory is that in the advanced stages of Zeovit, PO4 and NO3 will be 0.00 and every source of PO4 introduction should be minimised as far as possible.

Examples are: Top-up water, Effluent from CR Media, GAC, Food.

so what do u mean by every source of PO4 introduction shld be minimized as far as possible, bro? dun feed, dun add GAC, etc?

what i am trying to say is there is little possibility of avoiding adding PO4 to the system, so will any zeovit users still justify the need to add rowaphos to their system?

[weisoon]

LS, typrobin

I had been running Rowa in my old tank together with Zeovit. No problems. I believe the problem they mentioned is it will take much longer for the Zeovit system to really kick-in if running both(competition for PO4), so have to be careful.

For kalkwasser, Zeovit mentioned that you should not use as it may cause pooling of PO4 in the tank, but if the PO4 in the tank is nearly 0 before you start the Zeovit system, then it is OK to use kalkwasser after one start the Zeovit. Should not cause too much of a problem. I think the same here for the Rowa, if use in small amount and only after the Zeovit system has run its course, then should be OK.

Normal recommendation run time for carbon is 2 weeks on and 2 weeks off. But again, that is what I do and other reefer may have a different schedule. And for Zeovit users, better to run carbon in a mesh bag instead of FR as carbon is not meant to be run that way.

[AlfaRomeo]

so what do u mean by every source of PO4 introduction shld be minimized as far as possible, bro? dun feed, dun add GAC, etc?

what i am trying to say is there is little possibility of avoiding adding PO4 to the system, so will any zeovit users still justify the need to add rowaphos to their system?

Bro, not say until dunt feed but minimise the feeding. I went from 2x daily feeding to once a day and thinking of cutting down to once in 2 days.

Only 'High Quality' GAC that leech the least amount of PO4 should be used (If it actually exists)

Setup a PO4 remover box that the effluent from CR drips into. This will also minimise the PO4 being introduced. Biophos3 is recommended and leeching of AL ions should not leech back due to the low Ph of the effluent.

[lightningstrike]

hi weisoon,

i understand ur point, i hv been reading up on the zeovit myself though i m in exile from reefing. thx for clarifying my thoughts.

hi alfa,

i agree to finding the source and solve the problem, but in this case, i juz dun think it works that way.

for example,

reduced feeding........ wat happens to frequent feeders like anthias, tangs, etc?

sad to say, most GAC products available in spore do not hv %contents of elements stated on their packaging. very diff to define wat is "high quality" GAC.

agree with u on this.

Setup a PO4 remover box that the effluent from CR drips into. This will also minimise the PO4 being introduced. Biophos3 is recommended and leeching of AL ions should not leech back due to the low Ph of the effluent.

[AlfaRomeo]

hi weisoon,

i understand ur point, i hv been reading up on the zeovit myself though i m in exile from reefing. thx for clarifying my thoughts.

hi alfa,

i agree to finding the source and solve the problem, but in this case, i juz dun think it works that way.

for example,

reduced feeding........ wat happens to frequent feeders like anthias, tangs, etc?

sad to say, most GAC products available in spore do not hv %contents of elements stated on their packaging. very diff to define wat is "high quality" GAC.

agree with u on this.

LS, boh pian if you have Anthias but for tangs, they should be able to survive by picking on the rocks while waiting for another buffet on 1-2 days time.... the key thing is to minimise as far as possible, those that cannot be avoided, leave it up to the ZEOvit bacteria to convert to a form which the skimmer can skim away with ease.

Thats why it is also emphasized that a very good and effective skimmer like the beckett be used with the Zeovit system. Its critical in extracting the PO4 from the water..