Hey RIU micro growers! I've got a new box about 99% completed, seeds should be here this week but I'm in a bit of a quandary about one thing.. I don't have circulation fans that fit well in this space. It's 2' x 2' x 4' and even the smallest fan looks huge in there. I feel like my only options are computer fans and I have those and, if you can believe this, fan speed controllers to go with them lol. I've included pics to help you see what I'm dealing with. Any suggestions are, as always, much appreciated. How to install them is what I'm mostly interested in. Hang or wall mount some way...I don't know. Let me know what you think. Thanks!