temperature changes

indoor
have ducting from ac to tent

since the ac isnt always blowing, (its always on tho to clarify), there is obviously temperature changes, this is my intake and i have carbon filter exhaust, how stressful/damaging to the plants say 10 degree F changing back and forth constantly every say 10 min, assuming this is say ideal 85-75 temperatures?

I'm guessing you'll be ok, but I've never had that problem. Never even thought of it!

A solution to the problem might be to disconnect the A/C vent and just blow "room air" through your tent at a steady rate. In other words, just use conventional ventilation using the A/C cooled air, in the room.