Algae scraper sponge 40cm long

If you can no longer remove algae on glass or acrylic with an algae magnet, you can use algae scraper with sponge. The sponge measures 6.5cm by 7.5cm. Length is 40cm.A good aquarium sponge makes all the difference when cleaning the aquarium. An aquarium sponge is useful for the corners of the aquarium, but these sponges are also designed to remove algae from the aquarium water. By moving the sponge back and forth through the aquarium water, the filamentous algae remain in the sponge. These can then be easily removed from the aquarium.