3 - in - 1 Active Cube: Anti-algae sponge for fresh and seawater
Special Features:
- Prevent algae growth
- Adsorbing phosphate and silicateactive immediately
- pH-neutral
- No release of pollutants
- Individually adjustable, designed for commercially available aquarium filters
- Especially recommended for new installations
- Excellent for nanoaquariums and other smaller aquariums
- No phosphate enrichment in the aquarium from the beginning
- Also ideally suited as a growth material for the biofilter.