Mantis Bio-Filter Blocks offer a highly efficient solution for aquatic bio-filtration. Constructed from inert ceramic material, these blocks boast an open flow architecture and provide the largest usable surface area for optimal biological filtration. Their microporous surface supports the growth of diverse microorganisms, forming a stable and active biofilm to treat NH4-N and NO3-N effectively. These blocks are suitable for a wide range of filtration systems, including sumps, trickle filters, wet/dry filters, and can even be placed directly in the tank. Versatile in functionality, they are adaptable for use in fresh, marine, and pond water environments.

Key Features:

• Microporous surface enhances biofilm development and microbial growth.
• 3D void structure promotes effective water flow and microbial activity.
• Compatible with various filtration systems, including sumps and trickle filters.
• Suitable for fresh, marine, and pond water applications.
• Provides an excellent base for sponge growth, micro-fauna, and coral frags.

The Mantis Bio-Filter Blocks are engineered to maximise biological filtration efficiency, offering a technically advanced substrate for aquarists seeking reliable water quality solutions. With their unique structure and versatile application, these blocks are ideal for maintaining healthy and thriving aquatic environments.

Specifications:

• Block dimensions (LxWxD): 10 x 10 x 2.5 cm
• Material: Inert ceramic

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.