i think there somthing wrong

They are transpiring... they are too hot and/or the humidity is too low.

 

First - what is the temp at the top of your plant canopy? In other words, put a therm on the part of your plant closest to the light - how hot is it?

If too hot, then ya need to lower them temp. Too hot = 84F+

Second - do you have any fans blowing directly on the plant? If so, stop that. It can cause the plant to 'dry out' and thus its leaves will begin to 'taco'