Ocean Free Hydra Internal Filter

From £39.99

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Ocean Free Hydra Internal Filter
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Ocean Free Hydra Internal Filter and Depurator

Ocean Free Hydra Internal Filter

Internal filters are an excellent alternative to large external canister filters and are perfect for small to medium-sized aquaria. They are simple and easy to set up, they sit just inside the aquarium itself meaning they can be easily installed into any fish tank, with no troublesome pipes and hoses. The Hydra Internal Filter and Depurator is no normal internal filter. Using Hydro-Pure technology that is capable of enhancing the natural filtration processes, the traditional nitrogen cycle is sped up and eliminates any risk of an ammonia spike.

Key Features:

Hydra Pure Technology
Hydro-Pure Technology is suitable for marine and freshwater fish tanks of all sizes, all types of fishes, plants and live corals including all levels of stocking density. Catapure cartridges help in the prevention of New Tank Syndrome, especially in Marine tanks application. These cartridges are perfect for any applications that require pristine water conditions with a safe and stable level of Ammonia, nitrites and nitrates acceptable for aquatic life form. The pure technology along with two charged plates in the filter wipes out ammonia particles in any aquarium eliminating the chance of a fatal spike in ammonia.

Biological and Mechanical Filtration
The filter includes a more traditional large coarse sponge. This acts as the first line of capture for larger waste particles in the water. An empty cylindrical chamber can be found in the filter and can be filled with whatever you please including small ceramic media or loose carbon.

Adjustable Flow Rate
Located towards the base of the filter is an adjustable switch to control the flow rate of the filter. This is ideal for all for fish as different species enjoy certain flow rates, marine fish and coral for example need a much higher flow rate compared with some freshwater species.

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Technical Specifications:

20 30 40 50
Aquarium Volume up to 100 L 100 to 200 L 200 to 500 L 500 to 800 L
Flow Rate 400 L/H 600 L/H 800 L/H 1000 L/H
Power 6 W 7.5 W 10 W 15 W
Product Dimensions 11 x 8 x 20 cm 11 x 8 x 22 cm 12 x 9 x 28 cm 12 x 9 x 30 cm
Cata-pure 1pc 1pc 2pc 2pc

Product Highlights
  • Hydra 20 Filter, for aquariums up 100 L
  • Hydra 30 Filter, for aquariums from 100 to 200 L
  • Hydra 40 Filter, for aquariums from 200 to 500 L
  • Hydra 50 Filter, for aquariums from 500 to 800 L
  • For fresh and saltwater aquariums
  • Effectively controls nitrite and nitrate by eliminating ammonia with groundbreaking Hydro-Pure technology.
  • Simple pressure release compartments made for easy maintenance.
  • This product comes with a 2 year warranty excluding the impeller

Delivery costs for your order will be calculated during the checkout process using your designated delivery address and chosen delivery method. You will only pay one delivery charge for your order and this will be calculated on your entire basket after you have entered your delivery address. If for any reason your products are not deliverable to your chosen delivery address, the checkout will inform you of this before your order is submitted.

Our chosen couriers are DPD and Royal Mail. If an order is dispatched directly from a manufacturer then you may have a different courier delivering your order. Full tracking details for all orders sent by DPD will be provided when your order is shipped. You can choose ‘Express Courier’ to receive this service on any standard order. Any order sent from our suppliers, or with DPD will only be delivered Monday - Friday.

All stated delivery times begin from the moment your order is accepted which is when your order is shipped from our warehouse our suppliers. An order confirmation email is not the acceptance of an order by us.

A signature is required for all orders sent via DPD, at which point the responsibility for all consignments passes to you. If you have specified another recipient (who is not you) for delivery purposes, then you accept that evidence of a signature by the said recipient (or another appointed person) at your delivery address is evidence of delivery and fulfilment by DPD and this accepts the transfer of responsibility to yourself.  

We do not ship orders internationally.

To see a full list of our delivery charges and to read our terms and conditions, click here.

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