Iv got pics can you help please?

[max316420]

its not a mag def

 

[watchhowIdoit]

Its either N or magnesium but i would lean toward N

its not a mag def

hmmmmmm......

 

[max316420]

lol ya i know i contradicted myself.... but i'm still goin with nitrogen

 

[elnene]

becouse if def or od shows in big leaves its a a macronutrient, if it showa on little leaves ita a micronutrient problem.
maybe you have the plant too close to the lamp, thats why you are heating them up.

 

[watchhowIdoit]

Glad you got the joke Max. To answer the question why people think N def start low in a plant. The entire plant is N def, not just the leaves that show the signs. Plants move N from the older leaves to the new growth areas where its needed. Older growth just happens to be in the lower regions of the plant. I agree some def can manifest themselves out of the ordinary. But in this case I am pretty certain from the pics its a P def. Could be caused by the simple lack of P or too much calcium or the use of too much ammonia nitrogen, hopefully he is not using baking soda as a pH adjuster. These things we cannot know until the OP gives us the rundown on his medium, nutes, water source ect.....

 

[watchhowIdoit]

becouse if def or od shows in big leaves its a a macronutrient, if it showa on little leaves ita a micronutrient problem.
maybe you have the plant too close to the lamp, thats why you are heating them up.

I am not so sure about that. There are certain fans leaves that are sources and some that are sinks. But to use a leafs size to determine the def is a bit sketchy too me.