cant identify younger leaf problems of my autos

ethabhae

ethabhae

Well-Known Member
i crossed 4 strains with each other, sweet seeds dark devil , blackberry, GH seeds super lemon haze and jack herrer.
after started to grow my breeded seeds has same problem everytime. the upper younger leaves has overfertilized signs but i know there is no overfert. i use biobizz lightmix and no fertilizer in first month. i cant identify problem, maybe new strains genetic has the problem. did anybody has the same problem?
uploaded 2 plants pictures to show you
 

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i added little amounts of cal mag to my plants but i dont add nutes for adjusting ph, cos biobizzlightmix soil has lots of ppm, dont want to hurt my girls, is young leaves nute burn like signs shows ph issues? do you know young plants use water slowly, maybe another problem is this, overwater :S
 
Min 40 cm to 400w mh, these are Low Stress trained plants. Main bud and side ones has same distance to the light but only main bud has the problem. Leaf tips burn like...
 
ethabhae said:
i added little amounts of cal mag to my plants but i dont add nutes for adjusting ph, cos biobizzlightmix soil has lots of ppm, dont want to hurt my girls, is young leaves nute burn like signs shows ph issues? do you know young plants use water slowly, maybe another problem is this, overwater :S
Click to expand...
Light mix is what its called.. .Light on nutes.
They look hungry
 
As far as autos go , this far into its grow , it will not throw new leaf or branches. Feed it a bloom nute with a little more nitrogen ( which it needs for photosynthesis) , it shows plant cannibalizing its leaves for it.
 
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