Velda VT KH Plus 15 L 142080 Ventilation & Air Conditioning Canopy material: Polyester

Canopy material: Polyester

The wooden ladder on the entrance door can be leaned for easy access

Don't bleach

Featuring several open compartments

Back cushion size: 40 x 24 cm (W x H)

Velda VT KH Plus 15 L 142080 Ventilation & Air Conditioning Canopy material: PolyesterTo allow your oxygen producing plants to thrive, the maintenance of carbonate hardness (KH value) is very important, especially since biological processes in the pond continually reduce the carbonate hardness. A satisfactory value (6 to 8 KH) fights acidity in the pond environment and helps oxygen producing plants to grow and develop, thanks to bound CO2. The Velda VT KH plus water solution is a very effective means of increasing the carbonate