This product can be found in: API Water Conditioners | Fish Tank Cleaners | Fish Tank Maintenance: All | Fish Tank Water Conditioners: All | Marine Aquarium Supplies   Click Extra Product/Customer Images: product pic 1 UK Standard Delivery FREE on orders over £39* Available For Express Despatch Standard Despatch Cost + £2.99 This item is deliverable to most EU Countries From £7.99   Nexx Crystal Size 4 - Pack of 2 60826 0 reviews | Login to review £11.99 The API Nexx Crystal cleans and clears aquarium water absorbing unwanted odours and colours, leaving you with crystal clear water. It is suitable for freshwater, saltwater and reef aquariums. It has a pre-dosed cartridge for mechanical and chemical filtration that offers optimum microfiltration with activated carbon and superior resins. It is scientifically proven to remove organic aquarium pollutants, including colours, odours, heavy metals and toxic gases which cloud water and degrade water quality and the resin-carbon blend removes compounds that carbon alone cannot remove. Fits API Nexx Filters and Rena Smartfilters Each crystal lasts for 2 months Size: 4 Quantity: Pack of 2 Other size options are available: Click here for an overview of all choices - Pack of 4

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API Quick Start Water Treatment - 237ml Price: £9.99 Nexx Aqua Detox Size 4 - Pack of 2 Price: £11.99 Nexx Aquarium Filter Price: £69.95 Nexx Pre-Filtration Foam Price: £6.99 Nexx Extension Aquarium Filter Price: £49.99