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Tetra PhosphateMinus reliably reduces excess phosphate (PO4) in the aquarium. Phosphate constantly accumulates in the aquarium water because it is generated by the decomposition of organic matter such as fish waste and food or plant remains. This is a natural process in the aquarium. But the condition of the tap water used also has an influence on the PO4 value.
Phosphate is vital for aquarium creatures and plants because it is needed for many biochemical processes, such as plant photosynthesis. However, too much phosphate in the aquarium (over two milligrams per litre) encourages the growth of undesired plants. In addition, an excess of this nutrient can have an adverse effect on the water quality. The PO4 value should therefore be as low as possible (less than two milligrams per litre).
Tetra PhosphateMinus removes excess phosphate gently and reliably (by up to two milligrams per litre if the recommended dose is added). A major advantage of this product is that it does not cloud or impair the aquarium water or leave any deposits on the substrate. Its active substance, an organic iron compound, decomposes slowly and naturally. It is broken down biologically by microorganisms in the aquarium within just 48 hours and can be absorbed and removed from the aquarium filter together with the remaining phosphate residues. The filter should therefore be cleaned regularly to remove all of the broken down phosphate from the aquarium’s ecosystem. Tetra PhosphateMinus reduces the PO4 value reliably, without affecting the carbonate hardness (KH). As such, the product is also suitable for aquariums with soft water. This makes Tetra PhosphateMinus a reliable and safe care product for all aquarium inhabitants.
10ml treats 40L of water
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.
Our chosen couriers are DPD and Royal Mail. If an order is dispatched directly from a manufacturer then you may have a different courier delivering your order. Full tracking details for all orders sent by DPD will be provided when your order is shipped. You can choose ‘Express Courier’ to receive this service on any standard order. Any order sent from our suppliers, or with DPD will only be delivered Monday - Friday.
All stated delivery times begin from the moment your order is accepted which is when your order is shipped from our warehouse our suppliers. An order confirmation email is not the acceptance of an order by us.
A signature is required for all orders sent via DPD, at which point the responsibility for all consignments passes to you. 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 DPD and this accepts the transfer of responsibility to yourself.
We do not ship orders internationally.
To see a full list of our delivery charges and to read our terms and conditions, click here.