JBL PhosEx ultra

Removal of phosphate from aquariums: Filter media for use in aquarium filters
Item no. 6254100

16.05 EUR

Price incl. 11 VAT plus Delivery
Base price 47.21 EUR / kg
In stock – delivered to you in 1-3 working days
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Product features

  • Removal of phosphate from aquariums: filter material for the use in aquarium filters
  • To use: fill filter material into universal bag and place it in the aquarium
  • Insoluble iron compound; no release of any substances into the water
  • For fresh and saltwater: 340 g for the permanent binding of 18,000 mg phosphate.
  • Package contents: PhosEx ultra 340 g, incl. net bag, clip

Noch offene Fragen?

In unserem FAQ‑Bereich findet ihr Antworten auf die am häufigsten gestellten Fragen. Solltet ihr hier nicht fündig werden, zögert bitte nicht, uns direkt zu kontaktieren – wir helfen euch gerne weiter.

  • Why doesn’t the thermometer stick to the pane?

    Please clean the pane thoroughly before you install the thermometer. Algae, biofilms and lime can prevent it from sticking. If the thermometer still doesn’t hold, there may be a problem with the suction cup. Due to a material defect some suction cups have bubble-like excrescences which prevent a correct hold. If you own such a suction cup, please contact our customer service, and provide a photo.

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  • Why don’t the CO2 bubbles dissolve after reinstallation / cleaning?

    After reinstallation the bubbles move only haltingly through the diffuser and sometimes merge into large bubbles. The device needs approx. 48 hours to set up! After that a bio-film will have formed on the surface of the device, allowing the bubbles to rise freely upwards. After the running in time the required bubble count will adapt itself for your aquarium.

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  • Where did my algae come from?

    Algae problems in an aquarium can never be traced to just one factor or general condition, and instead, are always the result of a combination of different factors, which include light, fertilization, water changes – specifically, how often and how much – feeding, fish population and, of course, the specific water parameters. _x000D_ _x000D_ According to analyses that were performed over a course of a number of years, red algae, at least the common brush algae and beard algae, occur in descending order at the following parameters: _x000D_ _x000D_ 1) too little carbon dioxide (in relationship to 100 % of the measured tank); the pH level should be in the slightly acetic range, depending on the carbonate hardness, in every case. _x000D_ 2) elevated phosphate levels (over 90 %); phosphate limitation by means of JBL PhosEx ultra is often helpful here. _x000D_ 3) too little and too irregular fertilization (there should always be traces of iron at least). _x000D_ 4) insufficient water changes; a weekly water change of over 30 % is recommended for algae problems. _x000D_ 5) not enough fast-growing plants._x000D_

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  • Does JBL PhosEx ultra also stay in the aquarium during water changes when it is in an absorptive state, or does it have to be added again each time?

    JBL PhosEx ultra binds approx. 18,000 mg phosphate before its capacity is exhausted. That is why, even when a water change is done, it can still be used until its capacity has been exhausted and the phosphate concentration in the water rises again (test with JBL Phosphat Test sensitive). _x000D_ _x000D_ Example: 2.0 mg/l in the tap water yields 400 mg phosphate in a 200 l tank if a full water change is done and 200 mg new phosphate if a 50 % water change is done. Accordingly, the amount that can be bound depends on the water change._x000D_

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  • Can JBL PhosEx ultra in the bag be used in the bypass, i.e. in a filter tank / a filter column?

    Yes, this is possible. However, you should expect the phosphate adsorption through JBL PhosEx ultra to take longer.

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  • After using JBL PhosEx ultra, my tank water is coloured brownish-red.

    One can assume that JBL PhosEx ultra was not washed out prior to use. _x000D_ _x000D_ Rinse the net bag with JBL PhosEx ultra under flowing water before using for the first time in order to remove dust particles which cannot be entirely avoided due to transport, etc. _x000D_ _x000D_ Do a larger water change of about 50 - 60 %, take JBL PhosEx ultra out of the filter and rinse the granules thoroughly once more. If possible, reduce the filter flow rate for several hours, making sure that the oxygen supply is ensured, so that any particles which may still be present can be deposited and then removed with a gravel cleaner.

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