On this page Velda is offering you the possibility to investigate how the biological equilibrium of your pond functions. You can fill in what problems you are facing and, if necessary, the values you have measured with the help of the water test.

After that, a number of appropriate recommendations will be listed.

If this should not be satisfactory, you can ask for detailed information by email, using a form for completion.

Tick here what problems your pond is being confronted with:

Green turbid water
Fibrous and slimy algae
Bad growth of oxygen producing plants
Bad growth of water lilies


If you have already carried out a water test, you can fill in the results below:

  pH value
  CH value
  JH value


  

Regular death of fish
Disease of fish: white spot
Fish suffer from fungous disease
Fish have been attacked by parasites
Fish have bloody spots



  mg/l NO2
  mg/l NO3
  mg/l PO4
  mg/l Fe2/3