Pistils Browning/ Calyx Swelling? Week 7 :600w Coco Grow

Just overfertilization not just N probably...

I feed at 0.9 ec. Well below below the recommendation. To stay on the safe side. I don’t think I have other toxicity’s, do you think it would be worth flushing out my medium or just cut back more on nutes. I feed once a day bottom feeding roughly 3.5 litres each a day.

In NZ bro?

Chur.

I dont know, you'll have to play about with the nutrients, feeding every day bottom fed dosent sound the best way.

I agree, I’d like to learn a bit more about flood and drain, and how well the medium buffers ec, hopefully I can dail in how how much nutrients can be feed on a regular basis (3 times a day in smaller pots) at a relatively low ec

UPDATE: I’ve dimmed down the lights and rearranged the canopy so the main colas are now further from the light. I’ve maintained feeding at 0.9 ec and the pistils are starting to brown. Calyxes are now filling out. Visibly I am noticing more density which is great confirmation that My plants are still developing, ( just not as fast as I would like them too.) Will be week 8 of flower on Saturday.
Pics to follow.

Few more pictures, showing light height.

For me pistils turning brown happens quick once it starts and signifies the end, begins week six and goes crazy week seven and eight till theres none left.