D-D ClariSea SK-3000 Fleece Filter


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D-D ClariSea SK-3000 Fleece Filter
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  • Designed for use in a Marine sump
  • Promotes brilliantly clear water
  • Reduces load on protein skimmer
  • Easy cleaning and reduced maintenance 
  • End of roll audible alarm
  • Replaces the need for filter socks
  • Multiple installation options

The ClariSea fleece filter is a high-efficiency water filtration system which effectively removes suspended particles such as microalgae, detritus, food, organic waste and gravel dust from the water column. Suitable for use in marine aquariums, freshwater aquariums, fish-breeding systems and propagation systems for corals.

Designed to be mounted in a sump, but can be installed in multiple different ways; the Clarisea fleece filters completely replace the need for filter socks and fine sponge filtration to make your aquarium water crystal clear! Clearer water increases light penetration providing even more light for coral or plant growth. As water flows through the fleece all but the finest detritus and organice waste will be removed which greatly decreases the likelihood of it breaking down into nitrate and phosphate in the aquarium, keeping water parameters level for longer. 

Key Features

Reduces Detritus
The ClariSea filters also greatly reduce the load on your protein skimmer. The constant filtration of even the smallest particles results in reduced mainteance of skimmers, pumps, wave makers etc. Many fishkeepers have noted a distinct reduction in the detritus in aquarium substrate and sump. 

Multi-function smart controller
The smart controller has an end of roll audible alarm to alert you to changing it. A Filter jam/float error/water depth alarm is also included. There is also a handy water bypass system and fail-safe overflow.

Multiple Mounting & Installation Options 
The ClariSea filters are easy to position in the aquarium sump, and can be mounted in numerous different ways: Hung on the back, front or side of most sumps. They can freestand within the sump itself with a water level below 200mm, in deeper sumps they will need to placed on a box or shelf. The fleece can be fed from the front or back, and the waterr can be fed through from the top, side or at an angle. 

Aquarium Volume Up to 750 L
Flow Rate 3000 L/H
Particle size removal >20 microns
Maximum sump glass thickness 13 mm (1/2")
Maximum submerged water depth 20 cm (8”)
Inlet connection 32 mm
Filter fleece 10 cm (4”) width – length 25 m (82ft)


Delivery costs for your order will be calculated during the checkout process based on your delivery address and the contents of your basket. You will only pay one delivery charge for your order. Express delivery is FREE for online orders OVER £39 unless any of the points below become a factor.

  • Some large items like aquariums, ponds and pond liners will have an additional charge of £45.00 to help offset the cost of a pallet delivery.
  • Orders containing a physical gift card will have an additional charge of £2.45 to cover the cost of materials and delivery (digital gift cards are a free alternative).
  • Orders to highlands, islands and Northern Ireland may incur an additional delivery charge displayed at checkout this is based on the postal code provided. DPD provides a list of postal codes which have additional surcharges. Some of these post codes may also take 2 working days to arrive, even on express. Pallet deliveries cannot be sent to these post codes.

We only ship to the UK and cannot ship internationally.

We aim to dispatch items that are currently in stock on the same working day if they are ordered before 2.45 pm (excluding Bank Holidays). Orders after 3pm will be dispatched the following working day, unless it fits any of the below criteria:

  • Orders containing live plants will take up to 2 weeks to arrive. We take a week's worth of customer orders and then inform the plant farms of the specific quantities we need to fulfil that week's order to avoid wastage.
  • Pallet orders containing large items like big aquariums will take additional time to arrive as they are sent by a third party. These orders will NOT be dispatched until we have been in touch to arrange a delivery date, this is to ensure someone is available at your address to sign for the delivery. Deliveries will generally be delivered ‘curb side’ within the terms of the agreement we have with our couriers so you will need to make arrangements to transfer larger items into your home yourself. Unfortunately, our drivers are not insured to transfer the aquarium into your home.
  • Physical gift cards and items from the gift shop (such as clothes, towels etc) are sent with 1st Class Royal Mail. Delivery usually takes 1-2 working days, though in rare cases and orders placed closer to public holidays (Christmas, Father’s day, Mother’s day etc.) may be longer.


If you are not 100% satisfied with your purchase online from our website, you can return the product and get a full refund or exchange the product for another one, for up to 21 days from the date you purchased it.

We strongly suggest signing up for an account with fishkeeper.co.uk as this will allow for some additional returns options like return to your local store.

If you checkout as a guest you will need to return the product to Maidenhead Aquatics, PO Box 619, Egham, Surrey, TW20 2BS, please package the order (along with a packing slip or a note including your name, address and order number).

Large pallet items like aquariums are deemed delivered successfully with no damage once the the driver has left the property. If a report of damage is submitted after the driver has left we may be unable to assist with replacements. We recommend refusing a damaged delivery, this is the fastest resolution.

Our full terms and conditions can be found here. When you place an order with us online you are agreeing to these terms and conditions.

For delivery before Christmas, orders must be placed on or before 3pm on Wednesday 20th December. We cannot guarantee delivery of these orders pre-Christmas as we are reliant on our couriers, but will use our best endeavours to get orders placed on this date out to you before Christmas. For full details of our festive delivery and opening times click here

Please note: online orders placed after 3pm on Friday 22nd December will not be dispatched until the New Year. For full details of our festive delivery and opening times click here