Little help please, slightly confused.

[Greengrower]

Hi everyone, new grower and first time poster here and was hoping I could get some help please.

He's the short version, plants are 3½weeks old autos and seem to wilt after a 500ml water feed once every 3 days, they also have clawing tips.

Long version (all details)
I have 1 dinamed CBD auto and 1 dark devil auto both in roughly 17L of medium which is biobizz light mix with some additional perlite.
Recently I've been feeding 300-500ml of water with biobizz gro in at ¼ strength for the 300ml water and ½ strength for the 500ml watering. I believe temp and humidity are okay, it does fluctuate though. Surely girls this size in 17L shouldn't be overwatered from 500ml?

Dinamed 3 weeks 5 days from sprout

Dark devil 3 weeks 4 days from sprout

Tent

thank you for any help

 

[Gimemy]

Y are the tips of the new growth turning yellow

 

[Gimemy]

Sorry for the Y meant to say are the tips of the new growth turning yellow

 

[BBoomer]

Looks like your plant is flowering and i dont see any yellowing. Everything looks to be in order, nice job!

 

[Mañ'O'Green]

@Greengrower I think you will get more responses in the infirmary so I will move this over there.

It looks like your high on Nitrogen the clawing and dark green color point to that. I am not familiar with your nutrient brand so someone more familiar will come by.

 

[Mañ'O'Green]

By the way to AFN.

 

[Greengrower]

Hi guys, thanks for the responses

Sorry for the Y meant to say are the tips of the new growth turning yellow

No, no yellowing.

Looks like your plant is flowering and i dont see any yellowing. Everything looks to be in order, nice job!

Why is she clawing then and why are leaves like canoeing downwards? She's not grown much in the past 5/6 days at all

Looks like your plant is flowering and i dont see any yellowing. Everything looks to be in order, nice job!

 

[BBoomer]

Oh sorry about that @Greengrower. I must have somehow skipped the picture of the leaf clawing.. Clawing is usually from N toxicity from what I understand. What medium you are growing in?

 

[Greengrower]

Oh sorry about that @Greengrower. I must have somehow skipped the picture of the leaf clawing.. Clawing is usually from N toxicity from what I understand. What medium you are growing in?

Biobizz light mix (soil) with added perlite

 

[Waira]

quantity of water isn't the best gauge to go by mate, you have to assess the pot as a whole... part of the difficulty is the large pot size, which can stay too wet lower down, and dry out in top areas,.... heft the pot and recall what it felt like when first made up, with well moistened soil top to bottom,... spot watering is fine, it's help keep the lower area from getting resaturated, which if it stays that way for long, can lead to root rot; upper areas can develop odd dry patches too if the water isn't spread around evenly...
Wilting after watering hints at lower root zone being overwatered, suffocating the roots,... time to finger-dig around in there some and fell how the moisture levels are changing top to lower zones,.. set the pots on a small stack of newspaper to help draw off excess moisture by wicking action,...

Definitely some N toxicity starting, so maybe start using bloom nutes with lower N, higher PK %....
How close are the lights? What type/brand? The plants are very compacted, little internodal distances which is not normal, usually caused by a light proximity issue...