yellow leave tips?

[stash]

one out of two of my 25 day old plants has small yellow dots at the very tip of each leaves. wondering if this is a problem and why this is occuring...the other plant does not have these. they are under a 40watt hps...any ideas?

 

[stash]

sorry... 400 watt hps not 40. and even the new leaves forming have the same problem

 

[THE BROTHER'S GRUNT]

sorry... 400 watt hps not 40. and even the new leaves forming have the same problem

Whats up stash. You have to give us more details of your grow. Like: what kind of soil, how often do you water, are you using any nutes, how far away is your light from your plants. Give us some details on your grow and what you been doing this way it will be easier to help ya.

 

[Biffdoggie]

If it is just a tiny spot on the tips of the leaves it could be from heat, how are your temps?