My system started with couple IBCs and a small fishpond liner last year.  I have added some barrels, zip (vertical) towers, and a deep water raft bed over the last few months.  I've moved things around once already and now I see to expand my garden in the future  I will need to move it again.  Goldfish are cheap and easy to find.  I have them in the sump and tank.

Last week I bought some other fish from Freshwater Fish Co; a fish farm in Elk Grove, CA.  They have a public fish sale…