Just some more info-
Sealed Room (really sealed)
temp: 78-80
humidity: 60-65%
co2: roughly 600 ppm
1 Gallon plastic pots
full line of canna coco nutes feeding at recommended ml/gal for their "light feed"
canna coco
Lights: currently under 250W of COB cxb3590 leds. (I have another 750W of light once the girls grow bigger)
You can lower your A&B rates to equate to 200 ppm during veg and 400 during flower, less is more. Now if you go this route you will need to add Cal and Mag to the mix to prevent nute deficiency. I would continue using the rest of their line at the recommended rates, you can cut Boost back to 8 ml/gal early but as you go into flower kick it back up. Do not skimp on Cannazym or Rhizotonic.
Your plants will tell you when to water, you want the wet/dry cycle to build your root system but once its there let the plant tell you when they need water. Never let the coco dry out, never! During flowerI watered my two gallon smart pots 4 times a cycle. One hour after lights on to just before runoff, then 4 hrs later for 1 min, the two hrs later for 1 min, then two hrs before lights off to 20 to 30% runoff. During veg 24 hr light in the last two weeks I was watering 6 times a cycle, low amounts except for runoff time. 10 pm 2 min, 2 am 2 min, 6 am 2 min, 10 am 2 min, 2 pm 2 min, and 6 pm to unoff.
That work fairly well for me, I would have to adjust those times when I would do a defo for my vertical grow.
I used the 200 and 400 ppm program and only got any tip burn the final two weeks of the grow. No lush grow.
GR