D-D H2Ocean Nutri-Fix NP Bio Pellets are a 100% pure bio-polymer designed to safely and effectively reduce nitrate and phosphate levels in aquariums. Acting as both a biological filter media and a bacterial food source, Nutri-Fix NP supports the growth of beneficial bacteria specifically targeted at nutrient removal—without the risks associated with liquid carbon dosing methods such as vodka.

Unlike carbon dosing that spreads bacteria throughout the display tank, Nutri-Fix NP is used within a fluidised reactor, where it creates a controlled, oxygen-rich environment ideal for rapid bacterial colonisation. These bacteria consume nitrate and phosphate as they grow, locking them into a biomass that can be physically removed via a protein skimmer. As the media is agitated within the reactor, older bacterial layers are shed, allowing for fresh colonisation and consistent nutrient export.

This method ensures ongoing control of dissolved nutrients, improved water quality, and a balanced system that allows for increased feeding without encouraging nuisance algae.

Key Features:

• 100% pure fixed carbon source bio-media
• Reduces nitrate and phosphate through bacterial assimilation
• Designed for use in a fluidised reactor for maximum efficiency
• Works in oxygen-rich environments – no anaerobic processing
• Encourages targeted bacterial growth, not system-wide spread
• Supports stable nutrient levels and improved coral health
• Eliminates the risks of vodka or liquid carbon dosing
• Waste biomass is easily removed via a protein skimmer
• Helps maintain clearer water and reduces algae growth

Ideal for marine aquariums, Nutri-Fix NP provides a safer, more controlled approach to nutrient reduction—enhancing overall stability and supporting healthier, more vibrant tank life.

Aquacadabra acts as credit broker/intermediary and not as a lender.

Klarna's credit products are provided by Klarna Bank AB, which is authorised and regulated by the Swedish Financial Services Authority, with limited supervision by the Financial Conduct Authority. More information can be found here.

Newpay finance options are provided through Deko’s platform by NewDay. P.D. Aquatics Ltd, t/a Aquacadabra is an Introducer Appointed Representative of Pay4Later Ltd, t/a Deko, which is authorised and regulated by the Financial Conduct Authority (ref no 728646) and is a credit broker, not a lender. NewDay Ltd is authorised and regulated by the Financial Conduct Authority (ref no 690292) and is authorised by the Financial Conduct Authority under the Payment Services Regulations 2017 for the provision of payment services (ref no 555318). More information can be found by clicking the newpay option above, or in the Newpay FAQs.

We really want you to be happy with the product that you've received. If however, when the goods arrive they're not what you want, then no problem - we have a 60 day no quibble return guarantee. Just let us know that you're going to return the item(s) by contacting us(stating your Order Number) and complete the returns packing slip that will have been included with your delivery. This will help us to quickly identify the item that you have returned (unopened and unused) - and we'll put a refund through for you.