Is their any negative effects from not using a fan on small autos?

The title says it all. But to elaborate I wondered if I need to install a fan for my snowryders. It gets enough ventilation and whatnot, so I wondered if their was any point. I know the good wind will strengthen plants, but considering they will be small I thought it might be different from the usual larger plants I dabble in.

Sure wouldn't hurt,but no probably not neccesary if you have proper intake/exhaust etc. .never hurts to circulate some air though they sure wouldn't mind

exrtra ventilation wont hurt but i heard recently that the fans shouldnt be pointed at the plants

Fans do three things:

a. Ensure plants get enough CO2 and oxygen.
b. Help disperse humidity.
c. "Exercise" the plants stems by causing them to flex, ultimately resulting in stronger stems.

If your plants are short, and otherwise well-ventilated, then no, you shouldn't need extra fans.

Pointing fans directly at plants is OK, though I think most people who do this use oscillating fans so that you're plants don't spend the equivalent of growing their entire lives under a stiff wind!

Well I've been wondering as the leaves don't look so hot. I know they are a new strain for me, but they just don't look right to me. Two of the have slight nutrient burn which I'm trying to tackle, and I'm on rotation with plants as the light isn't big enough for the grow area.