Flood And Drain Question

Ok,
So I have started a hydroponics setup using the 'harvest every two weeks' as a guide and have my system ready. I have the 4 trays each eith their own res. I have 9 7" pots in each. I will be doing the sog and putting strait from clone into flower. My question is what should my water cycle be? I have my clones rooting in 1.5" rock cubes and will be using small lava rocks as a medium. I have read alot about this however i keep finding mixed answers and figured id ask for my specific setup.

Thank you in advanve.

I flood every 1.5 hours for 15 minutes.

Taviddude said:

I flood every 1.5 hours for 15 minutes.

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I was thinking something about that. You use tge same time from just sprout to harvest?

PetFlora said:

I use a combination of River Rock (as a cap- provides stability & light tight) + Lava Rock underneath.

My feed times change depending on age/size of plants.

Young clones ~ every 2 hours under LEDs, HIDs probably more often. As the plant grows (and consequently it's root mass) I increase the frequency to ~ 30 minutes. Now, it is critical to lower the PPM/EC (<500 in late veg; < 800 in full bloom) or risk burning them up from the inside out.

Also, I do not "FLOOD", I spray from the top. If interested, click on my sig

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Thank you for the info. I think I have figured out a good timing.

However I am not sure as to what my nute levels should be?

I am going strait from freshly rooted clones into flowering with 4 different trays each with their own res. I know the 4th one will be just PH'd water however I am unsure as to what the other 3 should be? I have the foxfarm trio, grow big, big bloom, and tiger bloom. Any help one this would be great.

Thank You.