Biophos ????

[nyfireman3097]

Im looking to get some for my calreactor drip cup BUT which one ??? Iron or aluminum ??????? I just have to hit order and its done so please LMK asap lol
thanx

[Heinz]

Edward is using biophos 3, which is aluminium

[nyfireman3097]

ok kool
Heinz do u know the diffrence ????

[Heinz]

aluminium is suppose to not leach at low lvl of ph, thats why Alexander and Edward are using it at the CARX, however, Randy didnt agree with it, if i remember right,

[nyfireman3097]

lol never a def awnser in this hobby lmao

[moonpod]

My understanding: the aluminum media like biophos is cheaper, but more prone to leach back. at the lower pH at least in theory the aluminum will not leach. The iron media is an option, but at least some people (ie bomber of RC) seem to at least indirectly criticize/poo poo the use of iron based media.

[mshur]

nick,
i use biophos-3.i change it every month. so,far i didn't see any negative sighs

mike

[cornelis]

I use biophos eizen basis and felt its well,
look like if AL basis no longer life is it right? correct me!
I am not chemistry just tried test to other AL basis and found like that.

[G.Alexander]

Hi Cornelius, not sure if you use the ZeoVit system, if so, it is not recommended to run any PO4 absorber beside the system.

G.Alexander

[earwicker7]

My understanding: the aluminum media like biophos is cheaper, but more prone to leach back. at the lower pH at least in theory the aluminum will not leach. The iron media is an option, but at least some people (ie bomber of RC) seem to at least indirectly criticize/poo poo the use of iron based media.

Bomber poopoos a lot of stuff--according to him, zeovit is garbage, any adding of iron will cause huge algae problems, and all DSBs eventually crash no matter what. I'd take him with a grain of salt--he's the reason I left Reef Central (let's just say it got personal ).

The new Julian Sprung book says something about the difference between aluminum and iron phosphate media; I don't have it with me at work, but my recollection is that he had a much lower opinion of aluminum.

[mesocosm]

Greetings All !



CHEMISTRY AND THE AQUARIUM by RANDY HOLMES-FARLEY
Aluminum in the Reef Aquarium
Advanced Aquarists' Online Magazine (July 2003)

Is the amount of aluminum released from Phosguard significant? Moreover, is it adequate to explain the results on corals that have been reported by aquarists? This question is extremely difficult to answer without some biological experiments. The tests run above show reasonably high concentrations of aluminum. Possibly high enough to cause problems for the organisms shown in Table 1 . But these tests were carried out on a large amount of Phosguard in a small amount of water. Tests with larger volumes of water might well result in lower aluminum concentrations. Additionally, the exact nature of the aluminum in these tests may well be different than in the toxicity tests reported above. That is, the nature may be particulate vs. colloidal vs. soluble vs. complexed by organics, etc.

HTH

[Aged Salt]

Hi all, using BiPhos3[Phosgard, etc] outside the sytem is perfect, especially it's use in filtering the CR's effluent of any excess P04's, as the pH of the effluent does not allow Al3 to be leached into the waterBob

[cornelis]

Hi Cornelius, not sure if you use the ZeoVit system, if so, it is not recommended to run any PO4 absorber beside the system.
G.Alexander

Yes I have not use zeovits yet, but I used biophos2.
not long ago have a plan try those zeovits.