bcotton's 3rd (current) system

[bcotton]

3 ibc are fish tanks, 2 ibc combine to make a sump... first two of 6 or 8 grow beds are built... I plan to build two more 4x8 out of wood then i plan to start tinkering with ferrocement as a grow bed option.

I plan to insulate tanks by building a standard light wood frame around the tanks with some sort of siding on the outside. I am not certain what kind of insulation would be best for this, suggestions are welcome..

this system is for perch and catfish [and maybe tilapia during the summer]... I still pipe dream of a greenhouse system for year round tropical plants and tilapia but that project is on the back burner..

The catfish are channelcatfish and I am going to try again to breed hybrid blue gill x red ear sunfish to make hybrid with vigor and 95+% male...

Marbled Crays grow in sump.