Drip sprayer system, I think. Water schedule?

Okay I'm duplicating a system of a friend and I'm having all these issues. I'm doing a variation of that one.
First off I had an algae problem because of standing water in the top tray caused by drain not seated. So I think that is my ph issue. Solving that with ph down tomorrow.
The medium is got me wondering how much to run my sprayers.
Spray at night?
Plants are growing slow.

Not even close to enough information to get any sort of helpful response.

You'll have to be FAR more detailed, and probably provide pictures if you really want useful information to solve your problem.


Peace.
Tav

I'd do spray for 30mins every 3 hours?