Absolute Bio Gel contains living bacteria specially developed to support biological filtration in aquariums and ponds. By accelerating the nitrification process, it helps break down harmful substances, making water safer for fish. Its gel formulation allows bacteria to adhere effectively to filter media, significantly reducing the time required to establish a stable filtration system from 6-8 weeks to just 2-4 weeks. Free from chemicals and certified pathogen-free, Absolute Bio Gel is a safe and natural solution for maintaining water quality.

Key Features:

• Live bacteria enhance biological filtration for healthier water
• Shortens filter start-up time from 6-8 weeks to 2-4 weeks
• Gel formula improves bacteria adhesion to filtration media
• 100% natural and free from chemicals or harmful pathogens
• Safe for all aquariums and ponds—cannot be overdosed

Usage Instructions:

• Add 20ml per 1,000 litres weekly.

• Turn off UV sterilisers or ozone equipment for 60 minutes after dosing.

• For new ponds, switch off filtration for 2 hours and ensure adequate oxygen supply to help bacteria settle on new media.

Available in 1L (treats 10,000L) and 5L (treats 50,000L) sizes, Absolute Bio Gel provides an efficient and natural way to establish and maintain a strong biological filter.

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.