Juwel Carbon Sponge M (2 Pack)
Juwel Carbon Sponge M – 2 Pack is genuine Juwel activated carbon filter media designed to remove dissolved chemical impurities, odours, discolouration, and unwanted contaminants from aquarium water. Made for compatible Juwel internal aquarium filters using M-size media, these replacement carbon sponges are an easy way to maintain effective chemical filtration and keep aquarium water looking clean and clear.
Each sponge measures 9.5 × 9.5 × 2.5cm and contains activated carbon within the filter foam, allowing water to pass efficiently through the media while unwanted dissolved substances are adsorbed. Juwel recommends replacing the carbon sponge approximately every 4 weeks to maintain effective chemical filtration.
| Specification | Detail |
|---|---|
| Package Size | 2 Pack |
| Media Type | Activated Carbon |
| Filter Size | M |
| Dimensions (cm) | 9.5 × 9.5 × 2.5 |
| Replacement Frequency | Every 4 weeks |
FAQ
How often should I replace the carbon sponge?
Juwel recommends replacing the carbon sponge every 4 weeks to maintain effective chemical filtration.
Is this sponge compatible with all Juwel internal filters?
Yes, this sponge is specifically designed for Juwel internal aquarium filters using M-size media.
What contaminants does the activated carbon remove?
The activated carbon removes dissolved chemical impurities, odours, discolouration, and unwanted contaminants from aquarium water.

Jan Wilkins –
The carbon sponges work well in my 100-liter tank. Water clarity improved noticeably after a week of use. Easy to install and fits perfectly in my Juwel filter. I’ve used them for three months now and haven’t had any issues with odour or discoloration.
Deirdre Stewart –
Good quality sponge that fits my M-size filter. I noticed a reduction in fish odour after a few weeks. Replaced it after 4 weeks as recommended. Works smoothly with the filter flow.
Jacob Avery –
I bought this for my community tank and it has helped keep the water clean and free of chemical smells. The sponge holds up well and doesn’t break easily during water flow.