- Suitable for all fish, plants and organisms
- Use in fresh or salt water
- Reduce sludge and cloudy water
- 5 x Pond Blocs
A natural biological treatment for ponds, lakes, dams and aquariums. Reduce sludge and cloudy water. It grows beneficial bacteria that prevent oxygen depletion. Absorbs ammonia and excessive nutrients. Biodegradable with ZEOLITE.