Seachem PhosGuard

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Seachem PhosGuard

Seachem PhosGuard

PhosGuard™ rapidly removes phosphate and silicate from marine and freshwater aquaria. It is not recommended for phosphate buffered freshwater. PhosGuard™ is highly porous for high capacity and bead-shaped for optimum water flow.

In recent years, there has been speculation that aluminum oxide based phosphate removers like PhosGuard™ release aluminum into the water and subsequently damage corals. The evidence to support this claim was largely anecdotal.

So, through a series of controlled experiments in both freshwater and saltwater, we intended to address both the question of aluminum solubility and aluminum toxicity. The results of these experiments show that under reef conditions (pH near 8) there is no detectable soluble aluminum released from alumina. Under conditions of low pH and high dosage levels, soluble aluminum can be released from alumina; at three times the label dosage rate, we detected 0.2 mg/L aluminum at a pH of 5.3.

Additionally, aluminum oxide is not easily absorbed into the cell to cause negative reactions. Even at three times the dose of PhosGuard™, soft-bodied corals such as Sarcophyton remain unaffected.

Delivery costs for your order will be calculated during the checkout process using your designated delivery address and chosen delivery method. You will only pay one delivery charge for your order and this will be calculated on your entire basket after you have entered your delivery address. If for any reason your products are not deliverable to your chosen delivery address, the checkout will inform you of this before your order is submitted.

As this product is dispatched directly from a manufacturer, we cannot confirm the courier which will be used until after your order has been accepted. Delivery information of this item will be given by our suppliers within 5 working days of your order being accepted. The delivery will be booked in at a time which is suitable for you. Please be assured that this item will not turn up without prior warning. Delivery of this product will only be Monday - Friday only.

A signature is required for all direct from manufacturer orders, at which point the responsibility for all consignments passes to you. Please make sure that you check all products for damage before you sign for them. If you have specified another recipient (who is not you) for delivery purposes, then you accept that evidence of a signature by the said recipient (or another appointed person) at your delivery address is evidence of delivery and fulfilment by us and this accepts the transfer of responsibility to yourself. 

We only ship this item to the UK mainland. We do not ship this product internationally, or to the highlands and islands.

To see a full list of our delivery charges and to read our terms and conditions, click here.

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