Super soil showing nute deficiency? Help

5 weeks into Veg, growing with 2 600 watt LED's approximately 20 inches from canopy.
Growing Medium is Coast of Maine stonington blend. (Their website calls it organic super soil and says no feeding necessary)
4 plants in smart pots, 2 in buckets.
Room temperature fluctuates between 74 and 82 degrees farenheit, RH between 50 and 60, sometimes hits 70% for a couple hours after watering.
Past 2 weeks I've given each plant just under a quart of water each every day when the soil feels dry about 2 inches down.
3 were topped at week 2, 3 were fimmed and lst at week 2
All were topped or fimmed again last week with some more lst for height control.

I figured I was watering too frequently so this week I've been watering every other day.

My light cycle is 20/4.

Twisting and yellowing tips on new growth appeared about a week ago. Still there.

Any advice much appreciated!
Pics below

Watering too frequent and not enough volume when you do.
those plants in that size fabric pot, should go atleast 2 or 3 days.
When you water, the pots should be fully saturated.
5 gallon smart pot should take about a gallon of water, in soil a little less since you dont want to leach out nutes.
Very unlikely you will be able to go the whole grow without feeding either. Partly because you didnt chose big enough pots to hold enough nutrient rich soil.

Thanks for your reply,I figured it was a watering issue. I've transplanted twice so far, figuring the fresh soil after transplant would provide more food, should I transplant again ? Or feed?

I would transplant to the final pot a week or two before you plan to flip. Give them a little time to establish.
Id fully saturate them once they need watering and see if they darken back up.
If they look any lighter, id feed them a complete fertilizer like dynagro. Start around 250-300 ppm, see how they take it.

The plants in the smaller pots are dark and actually look to be getting slight tip burn.

Okay thanks, going to give them a good watering and give them a couple days to see how they react, than feed em if necessary. What do you mean by tip burn?

Kingmcjames said:

Okay thanks, going to give them a good watering and give them a couple days to see how they react, than feed em if necessary. What do you mean by tip burn?

Click to expand...

Going back to look at your pics, the tips dont look burnt but twisted.
The underside being lighter, looked like tipburn.

Update, it's been a couple of weeks, I adjusted the watering as necessary, besides that all conditions are the same. The leaf twisting is persisting, just as bad on 2 plants, but the others look a little better.

I gave some sledgehammer to each plant last watering in case there may be salt buildup? I've read mixed opinions on whether this happens in super soil. Than today I watered with a compost tea made of lobster compost, EWC, alphalpha kelp and fish meals, little molasses, let that brew with an aerator for 24 hours...hoping this helps things. Also a week ago I transplanted into 10 gal final smart pots.

Opinions?