it all depends what you buy for a pump and how long it takes it to get to your water level. Mine only needs to come on for 6 min twice a day and thats it! but right now im flowering so when im vegging its 3 times a day on a 18 light schedule. Thats the easy part to figure. I would go ebb and flow man drip can be tricky figuring it all out, but its like anything once you,ve got it figured out its easy to make the small adjustments. I could leave my set up for a couple days and it would be fine but i dont. I like sitting in their and just watching ( the wife hates that)! lol. My set up is a 2x4 tray from a hydro store i suggest you get one from them and i got them to put in a mushroom shiphon vavle and the water inlet cut your inlet nice and short so it becomes a drain as well when you time your pump off that way it doesnt over saturate your cubes. then i got a 50g fish tank works the best i think or rubber maid i used that first but ran outta height in my room so i had to get the tray lower to the ground make sure your tray is higher than your res. a 60 gph pump some airstones 2 long ones and a air pump to keep that water oxygenated put stryofoam between the res and concrete if it goes on the floor. In my setup it takes about 5 minutes for the pump to fill the tray to where i have the height set at the mushroom valve then the pump runs one minute but still drains faster than it can fill which is good! and thats it. Continusually check your ph.