Anyone know what this could be?

Kfrank2021

New Member
I have been growing this strain for awhile and never have had a problem, this is about 2 weeks old in veg... perfect temp and humidity, and ph and havnt changed a thing from any of my other grows.. any ideas? 20150526_133828.jpg
 

Kfrank2021

New Member
Temps dnt get higher than 76% in veg or flower, only 3 of the 16 plants are doing this and they are all the same strain
 

Kfrank2021

New Member
12-15 inches atleast, thinking it may have to do with reusing my smart pots to many time and had some type o build up, or something a cross contamination of my nuets
 
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