Opps comfrey was a bad decision to put in my aquaponics.

About a month and a half ago I received a comfrey crown from Nick Ferguson. I decided the planet it in a wicking pot in my aquaponics system. Knowing comfrey sends down deep roots I decided to check the bottom of the pot. The roots are stealing out of the bottom like crazy. This is a word of caution confirmation not be a good plant for aquaponics. After removing the pot there's a quite a bit of roots left in the bed and The Roots hanging off or a little over a foot long.