Here is the short cycle timer I use. It is easy to use, just be careful not to bump the dials as they move easy. Other than that it's pretty set and forget. You can run multiple pumps from one timer with a 3 way splitter with no issues.
Pic of my diy aero cloner roots:
Pic of my bloom tent: undercurrent on the right and aerotable on the left. Both systems run off of one common 55g reservoir. It was a bitch setting up, but once it got dialed in it's a cadillac to operate.