Need a little help Please

[420inOregon]

The tips of a few of my plants the tips are brown just the tips they are yelloish brown it looks like its dried out and died. I will post some pics its got me baffled because its right on the tip of my toung its simple. Any help would help. Other than the tips being the way they are the rest of the leaf is fine and beautiefull.
I knowe you guys want pics I will do it when I get back from the Doc. She wants to bitch me out about everything. But yes the tips are yellowish brown and is a simple fix I just cant think of it. Thank You!

 

[BigIrishDoode]

without a pic i cant be sure, but it sounds like nute burn, a flush and ease back on the nutes a bit should do it.

 

[420inOregon]

Ok heres some pics

Thanks for your help. also why is that one the leaves are light green on the edges and the rest is a nice green. That strain is a No name kush the yellow tiped ones are another kind of kush unk.

 

[DEAN420]

looks like nute burn in the last pic, have you change how you been feed them since u saw the burns?? because the new growth looks a lil better.

 

[BigIrishDoode]

looks like you have some ph and nute issues, burn on one deficiency on the pale one, the pics are kid of dark and a little blurry, for me to be sure, but i would do a full flush on all of them,check runoff ph with the first cup on each plant, then after they dry a bit bring back gentle nutes at like 50% of what your using now hope this helps

 

[420inOregon]

thanks you guyseah alil while ago I had to use some diffrent nutes until I was able to give them some better nutes. Thanks alot