Tetra Pond FilterStart biologically activates the pond filter after winter or when setting up a new pond. It contains a blend of carefully selected, highly active strains of nitrifying bacteria that break down harmful substances and reduce sludge.

Features:

• Responsible for cleaning the water.
• Reduces pollution levels (ammonia and nitrites) in the pond.
• Breaks down organic substances (fish waste, leaves, etc.) thanks to special cleansing bacteria.
• Improves water quality and prevents decomposition.
• Only biological action - natural.