What do you think about placing air pumps in a minni frige so to blow cold air bubbles into the reservoir? I know some vent holes would need to be cut in the frige but i know if its set on its highest setting it could handle/cool the air turnover.
i've read that plants can take cooler temps if you keep the roots warm but no clue if it works the other way around. it might be beneficial for people with heat issues but i dunno otherwise. try it and let us know.