Hi folks - new forum user here. I don't yet have an aquaponics system, but I'm seriously considering it; the idea is fascinating, especially when combined with a BSFL grubbery to make fish food from the system's waste.

So here's my question: I read on the BioPod website that grub tea - the liquid that drips out of a BSFL grubbery - is a high-nitrogen fertiliser. In the interests of making an aquaponics system as "closed-loop" as possible, would it make sense to let the grub tea drip into the water flowing to the hydroponic grow beds? Or does it contain other substances that would make this a bad idea? Very interested in hearing the community's thoughts...