Hey guys. I'm currently running 2 autos in a 3x3x6 grow tent. I'm using a TSW 2000 grow light from mars hydro, which is said to pull about 313 watts from the wall. Both of my autos are on day 19, and today I noticed yellowing on the leaves. I suspect nutrient burn, as I upped their nutrients a bit the last feeding. So my question is, what is the issue? If it is nutrient burn, do I have to flush? Or can I just water with ph'd water next time and be good. The pictures posted are of two different plants. They are both Northern Lights but have very different phenos.
Yellow and Brown Tips, on two seperate plants
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I would suggest you to keep watering normally (but only water) in the correct ph, push the light a bit far since it could be light burn and check temperatures for some days.
-Problem: (brief description)
-Medium/grow method: soil; soilless-- coco, or peat based like Promix, etc. (please provide the actual product name); DWC, NFT, etc.
-Feed and supplements used: include brand, dosage/strength, frequency of feeding and watering (alone); method-- by hand, drippers, rercirc' or drain-to-waste,... N-P-K #'s too if you can!
-Water source: RO/DI; tap- dechlorinated-?..... EC or TDS reading; pH (don't bother with this on RO/DI, do bother with TDS/EC though to confirm it's working well enough)
-Strain and age
-Climate: night and day ambient T and RH%; res' temperatures; any extremes in T/RH% exposure
- Light used: HID, LED, COB, combo of,... wattage; light cycle hours (20/4, 18/6 , etc.); distance to tops....
-Additional info: How long have the plants been affected?...How fast did symptoms appear?... Anything else you think might be relevant..
--Pictures including WHOLE PLANT PICS, and troubled leaves.. use normal light or flash as other light sources ruin color rendering, critical for diagnostics!
✂ - - - - - - - - - - -
(copy and paste)-->
Problem:
Medium/grow method:
Feed: and supplements used:
water source:
Strain/age:
light used:
Climate:
Additional info:
i'd add to that, ph of medium and e.c of medium via any method you have/can use
-Medium/grow method: soil; soilless-- coco, or peat based like Promix, etc. (please provide the actual product name); DWC, NFT, etc.
-Feed and supplements used: include brand, dosage/strength, frequency of feeding and watering (alone); method-- by hand, drippers, rercirc' or drain-to-waste,... N-P-K #'s too if you can!
-Water source: RO/DI; tap- dechlorinated-?..... EC or TDS reading; pH (don't bother with this on RO/DI, do bother with TDS/EC though to confirm it's working well enough)
-Strain and age
-Climate: night and day ambient T and RH%; res' temperatures; any extremes in T/RH% exposure
- Light used: HID, LED, COB, combo of,... wattage; light cycle hours (20/4, 18/6 , etc.); distance to tops....
-Additional info: How long have the plants been affected?...How fast did symptoms appear?... Anything else you think might be relevant..
--Pictures including WHOLE PLANT PICS, and troubled leaves.. use normal light or flash as other light sources ruin color rendering, critical for diagnostics!
✂ - - - - - - - - - - -
(copy and paste)-->
Problem:
Medium/grow method:
Feed: and supplements used:
water source:
Strain/age:
light used:
Climate:
Additional info:
i'd add to that, ph of medium and e.c of medium via any method you have/can use
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