garage insulation

So I’ve got an Aqueon 210 and have convinced my wife to let me put it in the office-which is back up to the garage- and is letting me plumb it through the wall. My garage is insulated and the doors face north so they don’t get full sun all day, just the morning. I live in South Carolina and we...

I am really hoping to use my garage to house a bunch of tanks for various projects/experiments. However, I know the heat will be an issue. Mid summer, it reaches 85/86 in there. Does anyone have any experience with garage door insulation? Im curious how much that would drop the ambient temps. I...