Hi
Wow!!! Thanks for the feed back.
I have 2 small trays.
1 is 24" x 41" the other is 21" x 21"
I have a T off the pump and the T or Y supplies Nutes to each tray
It takes about 3 min before they are both running Nutes out the overflow fitting back to the tank.
The pump runs continuously for the 15 minutes.
You raise a very good ? and only I know what I have gleened from the internet and manufacture of these kind of devises.

I thought feeding 2 times during the lights on was correct?
I also thought that you should not feed during the lights out ?
Would appreciat any advice on this subject.

I am also planting 60 plants in the one tray and 25 in the smaller one.

I know now that I should not have veged so long, 4 weeks.
Plants were close to 11 inches avg when I went to flower.
They are now (were) 30 inches.
I flooded them with fresh water and bush master for 2 days to stop the growth.
I harvested the tops after 9 weeks.
The buds were smallish but lots of them.
There was just as much buds left underneith, they were very pail and anemic,
I am letting them cook under the lights and seem to be getting some color back.
I plan on taking the new clones straight to flower when I place them on the trays.
I plan on keeping all side growth trimmed off and will do this up to the 3rd week of flowering
Many thanks in advance for your help
New