lighting

My plants have just sprouted and are about 2 inch tall, ive been keeping my lights on 24/0. When should i Start changing the light schedule. I have been hearing on sites that if you keep light on for 12/12 ull have bud in 2/3 months, any more than 18 hours of light they wont flower or bud for 5 months, Is this true??

Generally, yes. The quickest turn around is around 4-5 months.

If you want a descent yeild and more than a half oz, put them on 18/6 for 2 months. You will see them mature in veg and the nodes will alternate, you can fim or top even in the meantime. Then 12/12 and you will have over 2 oz atleast.

I enjoy the results from the fim, I even fim in flower.