So I have a few problems with my plants. I'm not 100% sure if some of these problems are ACTUAL problems, or just normal everyday things that will happen to matter what. First off this is my first grow. I've been vegging for about 60 days. I'm using an assortment of CFLs. Also I am currently feeding the plants a general hydro nutrient blend. The soil is a basic potting soil pearlite and vermiculite mixed in equally. Currently the plants are on a 24 hour light schedule. Also non of the plants are showing signs of sex as of yet. Is this a problem? Yellow / dying leaves at the bottom of the plants. Dried leaf ends, seem like they are burns, just crumbled away when I touched the ends. Sorry for poor quality, was kind of in a rush to get these up. Bottom leaves are wilting and turning yellow. And, final problem picture. Not sure if this is a problem but 1/4-1/2 of the stems on this plant are purplish. What causes this/what is the problem? Please post constructive criticism/answers!