what to do with hydroponics nutrient solution after it has been used?

November 15, 2011 | Filed under: Aquaponics | Posted by:

hydroponics
Image by AndyGoodwin
The tomato seeds were started in rockwool cubes. They’ll later be moved to the buckets.

Question by Nick: what to do with hydroponics nutrient solution after it has been used?
Just wondering what do i do with the existing hydroponics nutrient when i need to change the nutrient solution. I know for organic solution i can use it on garden plants and veggie patch, but what about the inorganic salt based nutrients?

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