sounds like somethings eatin them can you post a pic ? indoors or out ?
get some insecticidal soap and try that without more info thats as much help as i can give ya

good luck
smokesalot Reviewed by smokesalot on . MOLDS?!?!?! What are the early signs of molds on seedlings?? I am first time grower so i might just be over reacting but some of my leaves have tiny brown/yellow spots and holes on them. Not too many, and they are on the outter region of the leaves. Can you help me please! Rating: 5