Those are the discarded plants leave etc, to many for us to use.
Fern again get the trimming, I redo the water inlet due the old one get clog and causing growbed to be clogged with fish waste. A lot of earthworm in my aquaponics, don't know where they come from. I need to be extra careful not to have the earthworm transferred to myself.
Fish tank after the trimming, full of basil leave, water celery leaves etc. I need to scoop these before it clog my water pump.