Hello everyone!  First let me thank everyone for sharing so much information in advance. I don't think I'd have an almost running aquaponic system if it wasn't for the info on this site. So lets get to it, what I have...

30 gallon fish tank. (I know its small, but eventually it will be my nursery tank)

12 gallon grow bed

12 gallons of hydroton cleaned

2 air stones

airpump

305 gph water…