Vegging plants with issues

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meerkat67

Active Member
Going some S C99 Blueberry, feeding in at 1.5 EC
Temps are 25-28 lights on and down to around 19-22 lights off. Under 1 MH 600w plenty of air movement with fans and have a ducted in-line fan out with negative air intake. 1200x1200 tent. Have noticed the leaves are getting browned tips on the ends and also up the blades now on the points too. The plants them selfs seem very compact and have heaps of growth on nodes close together but it’s not getting taller? They are probably 5/6 weeks from germination but don’t quote me on that! Using Floramax nutrients.. are these being under fed? Down worry about the recently germinated seeds in the pic they are fine just in there with them and seem to be doing fine. These plants were doing so well, have recently re-potted a week ago? They are in Coco. I feed to keep moist every other day or as needed. The light is roughly 400mm way from them.
 

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meerkat67

Active Member
Also, one seems to be muscular smaller than the rest. Then on the other hand one seems to be not showing any signs of leaf issues but is still quite stumpy.
 
Blue_Focus

Blue_Focus

Well-Known Member
meerkat67 said:
Going some S C99 Blueberry, feeding in at 1.5 EC
Temps are 25-28 lights on and down to around 19-22 lights off. Under 1 MH 600w plenty of air movement with fans and have a ducted in-line fan out with negative air intake. 1200x1200 tent. Have noticed the leaves are getting browned tips on the ends and also up the blades now on the points too. The plants them selfs seem very compact and have heaps of growth on nodes close together but it’s not getting taller? They are probably 5/6 weeks from germination but don’t quote me on that! Using Floramax nutrients.. are these being under fed? Down worry about the recently germinated seeds in the pic they are fine just in there with them and seem to be doing fine. These plants were doing so well, have recently re-potted a week ago? They are in Coco. I feed to keep moist every other day or as needed. The light is roughly 400mm way from them.
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I had the same problem. I was over feeding them.
 
DeadHeadX

DeadHeadX

Well-Known Member
Might be showing a little burn. Could be lighting, but new leaf grow is a little faded looking - could be too much light also. They don’t need that much at this stage. I don’t mist my leaves at all unless they need a foliar feed. Keep them dry, imo. LEDs can burn leaves through the water droplets.

edit to add: I’ve also quit liquid nutes, but that’s a separate discussion. Good luck.
 
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meerkat67

Active Member
DeadHeadX said:
Might be showing a little burn. Could be lighting, but new leaf grow is a little faded looking - could be too much light also. They don’t need that much at this stage. I don’t mist my leaves at all unless they need a foliar feed. Keep them dry, imo. LEDs can burn leaves through the water droplets.

edit to add: I’ve also quit liquid nutes, but that’s a separate discussion. Good luck.
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I’ve lifted the lights 100mm. These are under MH lamp not LED but I’ll ease up on the misting of water.
 
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meerkat67

Active Member
DeadHeadX said:
Many people recommend starting feeding with about half dose to see how the plant reacts. I don’t use this nute line, so less informed there.
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Yeah, seems strange they have started to show signs now.. I’ve been feeding them with this for a few weeks now.. even the tiny new seedling you see in the photo are getting this dosage without issues..
 
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Driver733

Well-Known Member
What is your PPM and Ph when you feed? I just noticed you are in coco, I only have experience with soil, and coco has a different watering regimen. Good luck!
 
DeadHeadX

DeadHeadX

Well-Known Member
meerkat67 said:
Yeah, seems strange they have started to show signs now.. I’ve been feeding them with this for a few weeks now.. even the tiny new seedling you see in the photo are getting this dosage without issues..
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Cool. Out of my limited wheelhouse for sure - just thought light might be an issue. Good luck sorting her out.
 
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meerkat67

Active Member
Driver733 said:
What is your PPM and Ph when you feed? I just noticed you are in coco, I only have experience with soil, and coco has a different watering regimen. Good luck!
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EC/PPM is 1.6 currently just looked and TDS 750 or PPM 1090 depending on what you use. Feed in at 5.8-5.9
 
tkufoS

tkufoS

Well-Known Member
meerkat67 said:
Going some S C99 Blueberry, feeding in at 1.5 EC
Temps are 25-28 lights on and down to around 19-22 lights off. Under 1 MH 600w plenty of air movement with fans and have a ducted in-line fan out with negative air intake. 1200x1200 tent. Have noticed the leaves are getting browned tips on the ends and also up the blades now on the points too. The plants them selfs seem very compact and have heaps of growth on nodes close together but it’s not getting taller? They are probably 5/6 weeks from germination but don’t quote me on that! Using Floramax nutrients.. are these being under fed? Down worry about the recently germinated seeds in the pic they are fine just in there with them and seem to be doing fine. These plants were doing so well, have recently re-potted a week ago? They are in Coco. I feed to keep moist every other day or as needed. The light is roughly 400mm way from them.
Click to expand...

Are your pots sitting on a cold floor ? Sorry if I missed something.
 
tkufoS

tkufoS

Well-Known Member
630w.. Promix hp. Above dirt with a shitty start. A-B liquid nutes. No run off or ec,ppm,tds testing. Only new thing I'm using is a cmh

20240104_162958.jpg
 
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m1100

Well-Known Member
i would say op has a overwatering problem + a slight nute lock, i would flush a little or just water with plain phed water

bless
 
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