Leaves browning

My leaves are slowly turning brown, getting crusty dry, and dieing off. Even the buds themselves are starting to look smaller than the rest of the plants. This is only happening to 2 of the plants and the rest seem to be in healthy condition. All plants are on the same light, water, and feeding regiment. Indoor grow setup under high output florescent fixtures, properly controlled humidity and air temp. Plants are auto-flowering type.

Any ideas?
Also tell me if i need some better pics.


Attachment 280541Attachment 280542

Looks like nute burn.... Try flushing just the two showing signs.... And only give them water for the next week or so until growth looks normal again.... The leaves that have already been affected will continue to die away so don't be shocked that they don't/won't look better/healthier.... The new growth will be what tells you they are growing fine again....

Just my :twocents:....

CGI::::::

Thanks for the tip ill try flushing the medium and see if that helps.