JBL Manado 10l

"Natural substrate which filters and enhances plant growth.
• Supports the filter with its large colonisation area for pollutant-absorbing bacteria.
• The special structure supports the development of plant roots.
• Restricts the growth of algae by absorbing excess fertiliser in the water.
• The rounded shape is also gentle on the sensitive barbels of ground-dwelling fish.
• Creates a natural and attractive appearance.
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