[Fishie Nut]

I am setting up my "fish room" in my garage. I've got my sump under the tank with the pumps under the tank. All the rest of my equip is going into the garage.

How do I put holes in the wall and keep out the hot/cold air from the garage? What do you use to keep it neat? I was thinking of bulkheads or maybe spray foam, once I install everything. The foam restricts any changes -- or makes it messy.

I'm really looking for suggestions here before I begin to drill and cut. Pics, too, would be great. Thanks.