Granddaddy Purple

obviously you have a good light thats why you have a tight internode space.. tou can try to rise the light if you want them to stretch a bit more, but you’re fine.. i would definitely clean this girl up.. you can for sure remove all the smaller branches that are in shade in the lower parts of the plant.. divide your plant visually in 3 , and remove everything thing in the first 1/3 of the plant.. hope it helps ;)

I'd cover them up you have fabric pots and if your soil is good you should already should have plenty of aeration. In the past when Iv'e grown in dirt , I like to put a layer of gravel or rocks on the bottoms and tops of the containers. Marbles whatever works but covering up the loose soil with a more solid heavy material is not a bad idea. Keep in mind soil and moisture can be breeding grounds for bacteria and other nasties so I tend to learn towards the idea of covering the medium up whether I'm growing hydro or in dirt. Just some food for thought or one growers opinion but I hope this helps. Your grow is looking great I wish you a bountiful harvest.