Its my first grow of a Auto indica strain and I'm currently on my second week. Im using Hydroponics DWC on a 5 gal bucket and using tap water with Flora Trio 2 ml /gal (0,5 ml / L) for each and Calcium /Magnesium 4ml/gal from GE. Temp is set around 21/25C and moisture around 50%. I noticed leaves started getting very light green/ yellow tone and I one started to appear yellow spots. Am I running into nutrient deficiency ?
Yellow spots on early veg stage.
- Thread starter RnineT
- Start date
TheSadBadGrower
Well-Known Member
Could be the start of calcium def....keep an eye on her.
TheSadBadGrower
Well-Known Member
What is your ph?
GrowMariguana
Active Member
My guess is probably too high PPM or PH lockout.
TheSadBadGrower
Well-Known Member
You are using bloom nutes already too?
PH has been between 5.5 ad 6.4... the water level must be about 1cm from bottom of pot and I use Mars 1000 TS ligth o a 18/24h schedule
How can it be with such low concentration of nutrients? I have keep the same water for over 10 days already ad PH has bee 5.5 to 6.4
TheSadBadGrower
Well-Known Member
I would change the res, feed 50% of rec dosage for this week and get ph in the 5.9-6.1 range.
I added recommended dosage of GH Calcium/magnesium
I was already o the 50% recommended dose...so I don't change anything but keep eye on PH?
TheSadBadGrower
Well-Known Member
Yep. That PH goes too high or too low and the plant can't take in certain nutrients. Keep it within that range of 5.9-6.1 and you will be in the sweet spot for the PH.
TheSadBadGrower
Well-Known Member
Im using all three Micro, Grow and Bloom
GrowMariguana
Active Member
Whats ur PPM? if she is 2 weeks old...she can't take too high nutrients and u will start to see burn spot and root will turn yellow.
Ok. It has been mostly on the upper range (like 6.1 to 6.4) which from what I see might lead to deficiency on Ca and Mag intake..
I dont have PPM better yet. I have started with vey low nutrients as you ca read on the post. Roots are very healthy and growing long.
In Hydroponic systems Ca is only available over PH 6.5 according to that graph.. if my plant has Ca deficiency how will I correct it with Ph 5.9 / 6.1?
TheSadBadGrower
Well-Known Member
You are looking on the soil side. Hydro is on left.
information seems contradictory regarding the nutrient availability.. this graphs shows totally different ranges...
