The Deltec NF 509 Sulphur Nitrate Filter is a biological filters in which special bacteria (thiobacillus denitrificans) remove nitrate from the aquaria water. The time span for proper functioning can be rather long. After the running-in period, maintenance (apart form checking the exact water flow) is simple.
The water coming out of the Deltec NF 509 Sulphur Nitrate Filter will have a low pH value and should be lead through a container with ROWA®lith C or similar. For better performance the NF 509 can be fitted with a circulation pump.
Dimensions (l/w/h) appr.: 180 x 140 x 500 mm
Includes sulphur: 2.5 kilos
For aquaria: 900 ltr.
