Don't use chicken wire, it's too small. Lowes or home depot get the green coated fencing wire. The girls need room to grow. When you come of 18/6 and go 12/12 the plants are going to continue to grow for two more weeks. Once you lay the screen 1 ft to 1 1/2 ft above the net pots you will need to bend and curl the stem. As it frows "weave" it through the screen or twist tie it under the screen.
Hope this helps, like I say NO CHICKEN SCREEN.
Hope this helps, like I say NO CHICKEN SCREEN.