I am acurrently growing fast and vast autos indoors under two 600w grow lamps, I am using hydro tanks. I am currently in week 3 from germination, everything was going well until the last two days where o have noticed leaves curling down the way and looking very very dark green(also very leathery/shines) also some of the lower leaves on a few of the plants have started showing signs of drying out.
Lights are about 1 metre from the top of the plant.
I am using green haze grow (part a and part b) mixing 40ml of each per ten litres of water.
I was also using magne cal 5ml per ten litres of water.
PH is sitting at around 5.8/6.0.
Ec pen is showing 1.2/1.4.
Humidity is around 30/40
Temp during the day is around 25 degrees c
Temp when lights off is around 18/19 degrees c
Lights are on 20 hours on and 4 hours off
Can someone tell me if I am doing something wrong, I read that this could be too much nitrogen casuarina he leaves to curl downwards and in slightly and also very dark green.
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