Things You'll Need
- Stiff bristle brush
- Bucket
- Chlorine bleach
Instructions
Remove the fish tank decorations that are covered with algae.
Scrub the decorations with a stiff bristle brush under lukewarm running water.
Pour nine parts of water into a bucket with one part of chlorine bleach.
Soak the aquarium decorations in the bleach solution for 15 minutes.
Drain the bleach solution from the decorations.
Soak the aquarium decorations in clean water for another 15 minutes.
Rinse the decorations under cool running water.
Allow the fish tank decorations to air dry for two to three days.
Place the decorations back into the fish tank.