CristalProfi e700/e900 UniBloc – biological filter sponge
Two replacement biological filter sponges for JBL CristalProfi e700 and e900 canister filters. Provides…
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This two-piece biological sponge set is made for keepers who run a JBL CristalProfi e700 or e900 canister filter and need a replacement media insert. It gives the filter a plastic foam surface where beneficial bacteria can establish, which matters most when a tank is being set up or the old media has been used for a long time.
Why it matters
- Plastic safety claim: The manufacturer states that the foam plastics used in this sponge were tested for harmful substances, including plasticizers, and that they release no harmful substances into the water.
- Replacement interval: JBL recommends replacing the sponge about every 6 months, because mechanical cleaning cannot remove all dirt trapped inside the foam.
- Faster biological start-up: Colonization in freshwater takes about 1–2 weeks without seeding. The manufacturer states that adding concentrated bacteria such as JBL FilterStart shortens the biological start-up to about 24 hours.
- Cleaning method: Between replacements, the sponge can be rinsed under warm running water, after which it is recommended to re-seed it with bacteria before reinstalling.
Specifications
- Compatibility: JBL CristalProfi e700 and e900
- Type: Biological filter sponge (UniBloc)
- Pack contents: 2 pcs
- Weight: 0.09 kg
- Article symbol: JBL WKLAD E700/E900 UNIBLOC
- EAN: 4014162601612
What it works with
The sponge is intended for the JBL CristalProfi e700 and e900 canister filters in freshwater and marine aquariums, where it sits in the filter as the biological stage. According to the manufacturer, colonization in seawater takes about twice as long as in freshwater, and a used sponge needs roughly twice as long to recolonize than a new one.
Technical specification
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Frequently asked questions
The package contains 2 biological filter sponges designed for the CristalProfi e700 and e900 filters. Check the sponge fits your filter model before ordering.
According to JBL, all plastics used in its foam sponges have been tested for harmful substances and do not release any harmful substances into the water. The manufacturer states this applies to aquarium use with live animals.
Rinse it under warm running water. Rinsing alone will never remove all the dirt, so the sponge should be replaced about every 6 months.
In freshwater, bacterial colonization takes about 1–2 weeks, and in saltwater it takes twice as long. Using JBL FilterStart bacteria shortens the biological start-up time to about 24 hours.
Yes, re-colonizing a previously used filter material takes about twice as long as the first colonization, because the dead bacteria strains make it harder for new ones to settle.
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