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Colombo Pond Nitrite Test Kit, Nitrite (NO2) is produced from the breakdown of ammonia in the filter. Nitrite is highly toxic to fish, but is usually removed from the water by the bacteria which live inside the filter. -
- 250ml.
- Fast setting.
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Grey Pressure pipe is the ultimate choice in the koi world it is very strong and ideal for underground work and looks the part above ground too -
- Helps maintain a clean, healthy pond.
- With added Sludge Control
- Contains millions of beneficial bacteria
- For optimal biological balance.
- 500ml treats 15000 litres
- 1 litre treats 30,000 litres
