im having probs in my veg . i keep my plants under a 400w for 18 hours . i feed them the technofloral line ( bc bloom , bc grow , thrive alive red ) i feed them according to the sched they suggest and whats happining is im getting leafs that are brown spots on them and the leaf feels thin and brittle and i think my prob is stunting my growth . the strange thing though is that once they do grow ( 25% die before i can flower ) they do thrive in flowering . what could it be ? i also use rockwool as my medium
spots
- Thread starter statepay
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Mcgician
Well-Known Member
Any pics? That would help. Also, have you checked for mites or whiteflys? Given your problem, check for bugs first, then check pH, keep and eye on temp/humidity levels, then check your nutrient solution. It could be that your pH is too low during the vegetative, and not able to uptake the nitrogen they need. The different phases require slightly different pH's. In my experience, pH has been the most important factor to keep an eye on.
Phelps
Well-Known Member
It could be a ton of things.
What is ur PH?
PPM?
Humidity & Temp?
Medium?
Watering schedule?
If u dpont have a PH and PPm meter u will never know exactly what is going on and we will not be able to help u because we dont know either. Cannabis is very touchy and the people who dont use those instruments and get a harvest are either lucky or they are coming up short. Plants should never just die off once they are established.. Especially 25%.