Ocellaris 400 Spares & Accessories

Aqua One Ocellaris 400 Filter Aqua One 143i Impeller Aqua One Bio Nood Aqua One 143s Sponge Aqua One Carbon Aqua One 143w Wool Pad

Getting The Best From Your Aqua One Ocellaris 400 Canister Filter

Aqua One’s New Ocellaris range of external filters look set to continue the success of their CF and Advance canister filter ranges, both of which have proved very reliable and continue to be backed by the best spares support in the aquatic industry. The Ocellaris 400. external filter is simple, modern and robust. Intended for small set ups of between 60 and 100l with a maximum output of 400l per hour at 1m head, the Ocellaris 400. features an excellent array of filter media including, polymer wool, sponge and ceramic Bionoodles. This combination combined with regular maintenance should keep your set up sparkling clear.

Here at Aqua One Parts we have Aqua One Ocellaris 400. hosing available by the metre, as well as the essential 143w slide in polymer pads, 143s sponge insert and 600g Bionoodles. Do remember that adding a small net media bag filled with Aqua One Advance carb activated carbon to your Ocellaris 400. filter will make a substantial difference to water quality and clarity.Here’s our suggested maintenance Regime for your Aqua One Ocellaris 400. External Filter based on our extensive experience of this filter:


Check visually to make sure that the Ocellaris 400. is flowing well and that the intake strainer isn’t blocked with debris.

Four to Six weekly

Clean the Ocellaris 400. out, rinsing the 143s sponge insert thoroughly in some aquarium water which is then thrown away. Clean the Bionoodles the same way. The 143w white polymer pad that slides between the sponge and Bionoodles should be thrown away and replaced as it cannot be rinsed. If you have added a bag of Aqua One Advance carb activated carbon change this as well as it is an adsorbative and cannot be rinsed clean. Have some Bionoodles or BioRing Plus on hand and exchange a few pieces for new ones to keep your filter media fresh and the bacteria culture lively.

Six monthly

Treat your Ocellaris 400 to a new 143s sponge insert as the cell structure will be starting to collapse on the old one. Don’t change the 143s sponge insert and the Bionoodles together. As too many ‘good’ bacteria are lost all at once.


Fit a new 143i impeller and a new main sealing ring to prevent leaks and maintain performance. Check all pipework and connections for leaks. If you have any doubts about the taps change them at the same time. Half an hour spent now means a whole year’s worth of trouble free performance from your Ocellaris 400.

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