How did you find us?

Search engine (Google)

If you found us through a search engine, what search words were you using?

Aquaponics

Are you an aquaponic gardener already?

No

What type of fish do you grow with? (select all that apply)

Koi

Name a part of a fish (spam blocking question)

fin

Please tell us something else about yourself.

Anxious to get started. I have a pond 15 x 20 4 feet deep. I have approximately 100 Koi of varying sizes. I plan to make grow beds from 350gal IBCs. Using both the top and bottom for grow beds.
I am having a difficult time finding (deciding) on the proper medium for the grow beds.