thanks for the story, mornings.

funny i was just outside wondering if you could power the GB's only on castings.

my thoughts;

you would be better off having seperate worm bins and using finnished castings to make a recirculating nutrient solution. see various info on partially composted worm bin contents being phytotoxic to plants.............

cultured fish may or may not be superior, but it allows us to grow a viable source of protein in our backyard in synergy with the plant side of things.

also distinction should probably be made between earth worms and compost worms, one breaks down decomposing matter, the other works the soil.

I think we first got onto the goodness of worms in our beds when a few people found that they had taken up residence of their own accord. if they WANT to be there then it is a good sign

oh, i forgot the original question!!! yes, i have used worm castings in the AP with no problem. hung a pouch of castings in the sump to leach out.
Steve

As i aid before I have thousands of worms in my grow beds so are they running of worm juce or worm tea