Know when cleaning is needed
A sponge may need attention when flow weakens or visible debris clogs the pores. Do not clean it on a calendar if it is functioning well.
Prepare a container of removed aquarium water during a water change. Untreated tap water may contain disinfectants that damage beneficial microorganisms.
Rinse gently and restart
Squeeze the sponge lightly in the removed water to release debris without trying to make it look new. Reinstall it securely and check for steady airflow.
If the sponge is damaged, replace it gradually alongside mature media when possible. Monitor ammonia and nitrite after any major filter change.
For your own tank
After rinsing, confirm bubbles return evenly and the sponge sits securely on the base. Keep removed filter water away from household cleaners. If you must replace media, retain mature material and test ammonia and nitrite during the transition.
- Aquarium Co-Op · Care Guide for Cherry Shrimp
- Aquarium Co-Op · The Beginner's Guide to the Nitrogen Cycle
Use these as general hobby references. Test your aquarium and confirm product guidance before making changes.