API Rena Nexx - Prevent Algae Size 4


API Prevent Algae controls silicate and eliminates cloudy water caused by phosphates within your aquarium.

API Prevent Algae's scientifically proven to remove phosphate and silicate, common  nutrients found in fresh and saltwater aquariums.

It reduces maintenance. Promotes the growth of reef-building corals and prevents calcium precipitation caused by excess phosphate. Safe for all fish, invertebrates and planted aquariums.

Prevent Algae offers multi-stage filtration to remove small and large aquarium pollutants. 4 sized micro-filtration pad cartridge for mechanical filtration, filled with superior resins for chemical filtration. 100% of water passes through the cartridge for best efficiency. No by-pass. Easy to change - no mess.

Rena Nexx replacement Prevent Algae cartridge for the Nexx filter and Nexx filter extension.

Size 4 two cartridges included.

Delivery Information

Fast Free Delivery within Mainland UK on orders over £60.00.
We offer free mainland UK delivery on orders over £60.00. Smaller orders under £60.00 are subject to a £6.95 delivery charge. Delivery will typically be made within 3 - 5 working days but may be extended during busy times of the year.

Extra charges will apply to certain locations for example Isle of Wight and Offshore Islands. In some cases we can even deliver outside the mainland e.g. Channel Isles and arrange the VAT element for you. In all instances please contact us today for a personalised quote.

We Can Offer Next Day Delivery for £9.95.
To meet our deadline for this service you must order before 11.00am to ensure delivery for the next working day. This excludes weekends and bank holidays.

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