Actually, that's exactly where I got the idea, Gallo. I picked up a barrel for $10 off Craig's List and the culled wood was a total of $3.06 at Home Depth, for treated lumber no less. It's a white barrel and will always be in the sun. I was thinking about having a black barrel for winter and white for summer. Maybe if I close off more of the opening, it'll retain some heat during the cold weather. Either way, I'll have the mealworms year round.
The aquarium is staying inside, so it'll always be between 70-80*. Good to know the hotter correlates to the life span. We only have the two chicks right now, so I won't need a good production for about a year, when we've added a few more. And combined with the free range and red flame grapes, plus the moringa tree, they'll be very well fed!
That sounds like a good plan on both counts. Smokin' deal on the barrel too! I've been looking around here to make the same thing and the cheapest I've seen is $25 for the white food grade barrels.