Dennerle Cleanator Sponge is a tough, long lasting, double-sided aquarium cleaner which is tough on dirt but gentle on glass and silicone seals.
The 2 different surfaces means you can use the steel wool to remove the more stubborn algaes and residue, and the softer sponge side gently removes algaes on more delicate areas such as the seals. Thanks to the shape of the sponge, you can get into every corner with the Dennerle Cleanator Sponge.
