jpsdad, I'm sorry to say I am not growing the mealworms; I'm buying them 10 pounds at a time off Amazon. And unfortunately, their country of origin is listed as China.

As an aside, one shipment we got last year had many freeze dried cockroaches mixed in with the mealworms. The tiger trout TT we have singled out the roaches. The trout would eat only an occasional mealworm, but crashed the BGs' feeding frenzy for the bigger roach morsels.

In my spare time (haha, there's precious little of that, right) I might investigate growing my own mealworms. If I had a surplus, I could freeze a quantity for future feedings.

I'm considering building a "backyard tilapia" setup. I've been reading the two connected websites www.lakewaytilapia.com and www.backyardtilapia.com. If anyone here has read and can comment on the detailed info posted on these two sites, please jump in. We prolly should start another thread if that discussion takes off.