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Best/most reliable method of removing phosphate

*Ci*

Active Member
Supporting
AquaGirls
  • Jan 31, 2023
    181
    294
    Nanaimo, BC, Canada
    I want to keep Caridina shrimp in a new 10g tank I am setting up.
    My tap water is nice in that it has zero kH and gH and I can adjust those parameters to suit the shrimp. However, it also contains 5ppm of phosphate, which the breeder I am dealing with says is on the high side for good health. Near zero would be ideal for shrimp, but there will be live plants to consider, as well (mosses, hair grass, hydrocotle, maybe some buce, maybe some stems)
    I am using a small canister (Oase Filtosmart 100) so I can put whatever product I choose in there, but what would be the best way to go? Is there a product that will just reduce phosphate and not totally eradicate it? Will the tank need constant testing to see if the remover is still working? I have no experience with this!
     
    There are phosphate removers, but you could go RO to be 100% sure it’s been removed. A 10 gallon tank isn’t much water to change so I think it would be a smart choice, plus the resin would last a long time if your water is as clean as your stating. You never know what else could be lingering that could affect shrimp more than fish, especially caridina.
     
    My mind is old, but phosguard, if that’s what it’s called
    This stuff works and in normal tanks with dosing and all it will remove the phosphate causing an imballance but in @Ci tank should work as wanted. You can also load up on Dwarf penny wort, floating it. Then add plants like Marselia Quadrafolia that activelly consume PO4 like a kid on candy.
     
    This stuff works and in normal tanks with dosing and all it will remove the phosphate causing an imballance but in @Ci tank should work as wanted. You can also load up on Dwarf penny wort, floating it. Then add plants like Marselia Quadrafolia that activelly consume PO4 like a kid on candy.
    So the drawback seems to be this (from Seachem’s site):

    PhosGuard™ needs to be replaced every 4 days as long as there is a phosphate problem because, given an infinite amount of available phosphate, PhosGuard™ absorbs phosphate so quickly that it reaches its full capacity in 4 days.

    It does not look like any phosphate removers are rechargeable, either. I do like the idea of running it just through a bucket of water change water, and not on the actual tank all the time, and I guess I could experiment to see how long a batch will last.
    I did not know that some plants consumed more PO4 than others!
     
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