Yes, I sponsor the Marine Biology Club at my high school and we have multiple tanks up and running year round. The biggest problem is dealing with the temperature, our district shuts off the A/C over the weekends and summer. Fortunately, we have multiple Apex running to kill the lights if the tanks get too warm. Our main display reef tank is a Red Sea C-250 and because of the hood w/ T5s we had to add a chiller as well. (I do know that Ocala, FL has a much different climate than Alberta, Canada)
The next concern was actually water levels. Again, we were fortunate that some members of the Ocala Reef Club donated us some ATOs.
I found feeding to be the least concern, I stopped in twice a week to feed and everything did well, including lowering our NO3 and PO4 levels.
My strongest recommendation is if you put a tank in your school is to get an Apex (a JR will work) - or another controller - and work with the IT department to get it permission to talk to Fusion so you can get alerts and check on the tank while you are away.