Cirax is a biological filter medium which creates the perfect colonisation conditions for useful bacteria, due to its large, highly porous surface.
JUWEL Cirax are highly porous ceramic-based pellets which, due to their extremely large surface area, create the perfect environment fulfilled the bacteria. In your JUWEL filter, Cirax helps to ensure excellent water quality.
Using a special basket, tailored to the size of your JUWEL filter, makes it easy to use, whilst the optimised filling quantity means a long service life of up to a year.
Characteristics of JUWEL Cirax:
• Excellent water quality due to effective biological cleaning
• Extremely large surface area due to highly porous filter material
• Suitable for use in freshwater and saltwater aquariums
We guarantee all of our products for 2 years from the date of purchase. Filter sponges and fluorescent tubes as well as all components that are subject to normal wear, e.g. the impeller of the pump, are excluded from the guarantee. Any guarantee claim must be substantiated with a valid proof of purchase.
The respective information on which filter you have can be found in the aquarium passport which is in the Instruction manual.
The Biolow pump housing has a diamond shaped connector and sits beside the filter media in the filter housing. Advantage: With the Bioflow Filter you can access all the filter media without having to remove the pump.
All JUWEL filters that have 400,600 & 1000 circulation pumps can be interchanged to increase or decrease the flow rates as required. The only exceptions are the 280 and 1500 circulation pumps that cannot be interchanged.
We recommend inserting Cirax at the top spot in the lower filter insert.
As the filter starts to do its job the filter media clogs and as such the water quantity passing through the filter is reduced. This can be seen by a reduction in the water level inside the filter box. The capacity of the pumps is designed to have sufficient reserves to cope with this. Hint: Check the water level in the filter housing during the weekly replacement of the white poly pad. The weekly maintenance of this white poly pad should restore the level.
Below are our guideline maintenance suggestions, It goes without saying that the manner and the frequency of the maintenance will also depend on the individual conditions. Our recommendations to clean or replace the media are based on average experiences: Replace the white poly pad on a weekly basis. Replace the black carbon sponge approx. every month. Replace the green Nitrax sponge every 2 months. Replace the blue, coarse filter sponge after approx. 3 months. Replace the white Cirax filter basket with ceramics after approx. 12 months. Replace the blue, fine filter sponge after approx. 9-12 months. (Also refer to the attached figure.) Hints: For safety reasons, always disconnect all electrical devices from the mains before undertaking any work in the aquarium. Never replace all blue filter media at the same time. Check the water level in the filter at regular intervals; a drop in water level indicates that the filter media is beginning to clog and should be changed.
The JUWEL internal Bioflow filter system is a biologically operating aquarium filter. The filter is matched to the aquarium volume for optimum performance The capacity of the filter pump is designed for two or more times the throughput per hour (e.g. Rio 180 = 180 litres with a pump capacity of 600 l/hr) This large and structured filter volume in all our systems provides a safe and stable environment for the livestock along with ease of maintenance. The various structured media within the JUWEL internal filter system is optimised to biologically break down pollutants within the aquarium. The dual flow principle: A unique feature of the JUWEL internal filter is the dual flow principle in the Bioflow 3.0, 6.0 and 8.0. The water passes through the two high volume filter blocks at different speeds for Increased optimisation of the biological filter process. Scientifically tested: Scientific long-term tests by independent institutes have proven that the JUWEL internal filter provides best water quality ensuring a safe and healthy environment within your aquarium. At Juwel we believe the water should stay in the aquarium, that's why our filters are there. This provides peace of mind and along with its exceptional ease of use and maintenance provides a perfect filter system.
The special Construction of JUWEL internal filter allows the circulating pump to pull water from both the upper and lower areas of the aquarium. The water passes through the graduated filter media from the top to the bottom, which greatly simplifies the filter maintenance. The filter media are: The white poly pad which act as a mechanical pre-filter. Hint: Quick and simple to replace, it removes large particle waste preventing the rest of the filter from clogging too quickly. The black carbon sponge removes chemical impurities. The green Nitrax sponge contains special microorganisms that break down nitrate and consequently helps reduce the growth of algae. The blue, coarse filter sponge is biological filter stage I. Separation of the water flow Part 1 of the filtered water returns directly via the riser of the pump into the aquarium. Part 2 of the filtered water moves to the second stage of the biological filtration ""slow filter"". Cirax, the white basket houses filter ceramics with large surface areas under aerobic (oxygen-enriched) conditions. The blue, fine filter sponge represents biological filter stage II which operates in a strong manner under anaerobic (oxygen-deficient) conditions. The filtered water then flows back into the aquarium via the circulation pump.
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