When to go from 18/6 to 12/12?

[MarijuanaMike]

Here is a pic of one of my plants from my first grow....you can kinda see it on the first one and the second one is a few weeks into flowering

http://img334.imageshack.us/img334/8669/296qm.jpg

http://img168.imageshack.us/img168/1682/554kb.jpg

MarijuanaMike Reviewed by MarijuanaMike on 02-15-2006. When to go from 18/6 to 12/12? I've identified my 3 plants as all females( I ordered female seeds), they are about 9 inches tall and appx. 4 weeks old. When should I go to 12/12? Rating: 5