Seachem PhosGuard phosphate remover

    Seachem PhosGuard Phosphate Remover


    Seachem's PhosGuard is a high performance phosphate & silicate remover for the marine or freshwater aquarium. A great choice to lower to high phosphate concentrations in the marine aquarium / reef tank. PhosGuard will not leak phosphate & silicate back into the water.

    In a planted reef tank / macroalgae refugium we recommend not to reduce the phosphate concentration below 0.02 ppm and to dose macroalgae fertilizer when necessary. This product is designed to lower the phosphate concentration to 0.02 ppm.



    PhosGuard™ Phosphate remover 100ml / 250ml / 500ml / 1000ml

    PhosGuard is the professional method to remove phosphate and silicate in the marine aquarium without releasing it back into the marine aquarium water.

    A too high phosphate concentration in the marine aquarium can cause nuisance algae growth and affect the growth of hard corals.

    How to use:

    • Pre-rinse before use as it may generate heat on initial contact with water
    • Place in an area with good water flow but not that it will tumbles against itself
    • Can be used in canister filter, media chamber and box filter
    • Use 85 ml ( 1/3 cup) for every 200l marine water 400l freshwater

    It is recommended to check the phosphate concentration regularly. After the phosphate remover has been added to the marine aquarium please check after a few days if the phosphate concentration has dropped to 0.02 ppm. 
    If not please replace the PhosGuard™. Otherwise leave the PhosGuard™ in the aquarium until you see the phosphate concentration starting to rise again.



    We want you to be fully happy with your new macroalgae addition. Therefore we offer you a hassle free Satisfaction Guarantee.  

    If you are not 100%  happy with the macroalgae you have received on arrival we will refund you the full money back.    *1
    We even will cover the return costs. The refund will be offered after we arrived and checked the returned marine algae.

    *1 = Valid for UK Orders only, please see our Terms for EU orders HERE 


    We offer for sale macroalgae from our mature macroalgae mother colonies in a premium quality & 100% healthy within the UK and EU.
    All live algae species are sustainably grown in the UK.

    All macroalgae will be well protected when posted to you to ensure that it will arrive in the best condition at yours.


    We won't be beaten on the premium quality of our live algae cultures, and surely not on the price either!

    Have you seen the same macroalgae somewhere else cheaper?

    Please just send us a message HERE and we will check your request within 24 hours ( working days only ).

    When we can match the other price we will send you a discounted offer which will be valid for the next 7 days after receiving our email.
    This offer will be just valid for purchases using the same email address provided before.

    The price match offer is only valid for identical, same size/amount and available macroalgae species.
    As a proud UK based tax paying business, we don't price match any offers against auction sites or from private sellers.

    The price match offer is just valid for UK deliveries. We reserve the right to refuse a price match request.

    If you have any questions please don't hesitate to contact us.

    Your Livealgae UK

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