the other day i looked at them and the top was droping a bit then the next day it was turning yellow and then brown or dead but its only at the top of the plant. I water every 3 days about when soil is dry, temp is between 75 and 95 rarely 95 - 100, I fertelize everytime i water with 20-20-20. got a fan 5in in the room. with windows open. Could it be heat stress or is it a nute problem. light is about 2 feet away from plant 400 watt High Pressure Sodium. heat is from light only and room temp. thanks alot guys. My first grow.
Top of plant leaves dropping then turning brown. thinking its heat stress
- Thread starter Logie11
- Start date
Silky Shagsalot
Well-Known Member
you should be ferting once a week. plain ph'd water in between feeds. if your 400 watter is 2 feet (that's way too far away, try 12".) away then it's probably not the light alone causing it. although the temps. you mention are pretty high. moving the light closer may increase temps. you need to get those temps. down.
juststartin
Well-Known Member
have u not got any sort of fan in there?