Should be fine! Make sure the water bottles are dark though, so that the roots get no light. Leave them alone for a week to 10 days and then check on them. You can also mist the leaves every few hours to promote water absorption and rooting. Good luck!

I Have 4 Freshly Cut Marijuana Clones in 4 Bottles of water,with holes on Top. I wanted to know if they'll grow roots. I put Schultz Plant,and Vitamin B-1 in the water bottles. I have 2 4ft 32W Floursecent Tubes, 18 Inches above it. And 2 23 Watt CFL lights 8 Inches away. I have a Little Fan Blowing air onto all the Plants.