Duck weed is a wonderful fish food for species like Jade and Silver Perch.
Duckweed is one of the best-kept secrets of Aquaponics.
It is a high quality feedstuff that can be produced in useful quantities at little cost and with little effort. Of equal interest (particularly in an Aquaponics context) is its ability to remove nutrients from water.
We began growing duckweed in 2004. Initially, we used it to supplement the pelletised rations that we fed to our Japanese quail. In more recent times, it has become an important part of the diet that we provide to our Jade Perch.
In the right conditions, this tiny plant can double its mass every 24 – 48 hours.
Its explosive growth rate enables you to harvest and feed fresh duckweed on a daily basis.
At 35% to 40%, it has a higher protein level than Soya beans and higher concentrations of the essential amino acids, lysine and methionine than most plant proteins.
Excerpt from our Practical Aquaponics for Everyone Magazine Issue 2
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