Leaf Yellowing & Discoloration

[Pirate138]

So some of my lower leaves are yellowing and some have spots. A few of my large fan leaves are now falling prey to the same prob. Im thinking a N deficiency?? I watered with 1 tsp of fish emulsion to counteract that.

Strain is Thunder Head

In Soil under a 400w HPS

Day 10 of flower

 

[hdn155]

looks almost like what i was just dealing with, calcium... what are you watering with? i could be wrong though, im no expert.

 

[wishbone420]

having the same problem must be the dirty south water

 

[Pirate138]

having the same problem must be the dirty south water

Nah im using distilled water now for like 2 weeks. They were gettin well water before that.

 

[tico0r]

ph is my guess.. if using a digi pen..make sure its calibrated. I just got over a big problem with multiple defs with yellowed/light green shriveled crispy fan leaves. Finally bought strips and did a test and found out my pen was off by 2.0

 

[hdn155]

are supplementing with cal-mag pirate? if not, thats the same mistake i made. watering with distilled but not adding any calcium.

 

[Core]

feeding with distilled water robs them from there nutes very fast...but with this small info its hard to diagnose ...

 

[hdn155]

just curious core... why does distilled rob them of their nutes very fast??

 

[Core]

there's notthing the plant can live from if you give it distilled water... REALY NOTHING ...the plant will starve and feed of the stored nutrients...that why the rapid yellowing occeurs....ime...

 

[Daemon]

^^You mean if you only give them distilled water/no nutes?

I use distilled when I flush sometimes.