15 mins on 15 mins off Watering Question

Hey guys ive been searching for an answer for hours with no luck, the timer ive got only goes as low as 15 minutes on 15 minutes off. Is this ok to use for the sprayers in my aero setup will my plants die/dry out from lack of water.

bump need help guys as ive started germinating my seeds. thank you.

Guy Smilie Here!
is the timer is built into the aero system?

im not using an aero garden i just built my own aero setup im using a normal 24 hr timer that has 15 min intervals.

I've been using the same thing for two batches, works fine.