Is this hair? Pic included

I've been growing under T5 at 18/6 for about a month and half now and I see white hair like features. This is happening in several of our plants. I got mixed up during germination process and don't know what strain this is.

What is this? Can it shows signs of sex already? I need expert opinions please.

Thanks.

pic is really tiny, & REALLY hard to see, all I see r stipules & new sites starting for more leaf growth.

i'll try up loading another picture later. this is what happens to pictures taken by phone.

Need a close up. Yeah, it shouldn't be showing sex now unless it's an autoflowering strain. But judging by the size of the plant (stalk), if it was autoflower you would already know what the sex was.

yes plants can show sex in as little 25 days of veg....most later..but yes it can happen.

what are the strains of autoflower?

also, autoflower seeds are sold separately? I never heard of them.