Hi everyone to me it looks like iron buy I have added extra cal mag.
The lights are at 80% and 20 inches away which makes me think it's not light burn.
- Any help would be much appreciated
Flora trio ghe
2/3 strength Evry 3days
This might be abit too much, but its best to ask ZN to be sure, he uses soil and will know what to do with the roots.
I always like to recommend a foliar feed of epsom salts around this stage of growth. Helps keep the calcium and magnesium flowing properly.
Have you been monitoring ph? And have you changed the amount you feed recently?
@moglo Some Epsom salts mate, 1/3 teaspoon per litre, then spray the leaves top and bottom 
Are you waiting for the pots to dry out as this can be an effect of overwatering...same effects are seen with heat and overfeeding too. What soil are you in ?
@zn it is in biobizz all mix and I am using autopots. I will turn them off for a few days. Thanks for the tip
it is in biobizz all mix
As far as I know AllMix has already all the nutrients you need. I would just water them with pH'ed water for 1-2 weeks and see how they react. Let the soil dry. I use LightMix and water every 2-3 days, sometimes even 4 days. I wait till the girls "let me know" they need feeding. Also I would reduce the light intensity, either raising the light or reducing the power or both.
If you have the time and energy, I would try to change just one thing, trying to pin point what might be causing that issue. In general though, since I started letting the soil dry between feedings I've had much much better results.
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