homegrown
New member
I know growers add worm castings and fish poop and bird poop...has anyone tried actual fish poo from a pond filter? I winterized my Koi pond today and pulled the filter for the winter. Its got to have 15lbs of fish shit and rotting vegetation in it. But i also noticed a couple thousand little tiny worms and things in it. Wonder if it would be best to let it dry out and then incorporate it into grow mix? OR should i sterilize it(heat it up)? or just not use it. any thoughts?