She stopped drinking, or at least drinks significantly less. Early flower

[Markyb]

Hi! My plant is now exatly 6 weeks old, in early flowering stage. She stopped drinking right after she finished stretching.
Earlier the pot was dry in every two days, now it takes 3 or maybe even 4 days.

Medium is 2/3th Biobizz Lightmix and 1/3th perlite.
I always condition the water to 6.6ph (which is also pretty much the Ph of the soil also).

I feed her Canna Flores, around EC0.8 every other watering. Runoff EC (when giving just plain water) is around 0.3 - 0.4. I don't think there is a buildup.

Temps and RH are around 24-25C / 55-60%

To my eye, she does not look particularly unhappy, but the drastic change in her drinking is worrying me alot. Could you guys and gals take a look?

 

[WildBill]

I don't really see anything that would cause the Change.
I do see some signs of purpling on leaf stems, but not on the majors.

Photo or Auto?
What is your current ppfd?
Have you done any defoliation? Doesn't look like it to me.
Do you have any inoculate that you use? Recharge works well with salt or organic grows.

I would try a dose of Green Leaf Sea-K kelp extract.
I would use it as a drench. You should notice something within 48 hours for sure. Usually I can tell within 24.

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If you wanna try something sooner than getting the kelp in, you could go to the grocery store and get some bulk organic popcorn and make some seed sprout tea......SST. Both have lots of hormones, the SST has growth and root stimulation hormones.
Just soak a cup of seeds in the same water you use for your plant until they sprout a tail. Blend up the seeds and water, paying attention not to heat up the mix. Just make sure you have enough water added. It's water you're after. Strain it out and squeeze all the water you can and apply to the roots.

This may be this particular strain's normal structure, but to me, I get the impression there's not enough light intensity .