two part question: how can I prevent roots from ch...

Hi @xanado18 It is not necessary to prune damaged roots. However it can be a good help when you vegetate a plant for a long time and when it is going to start flowering you don't want to use a larger pot than the one you were using to vegetate. Then cut part of the "cake", put new soil in the pot and put the "cake" back with its roots pruned. However, this "technique" is more used for those who maintain mother plants (which they use to remove clones for several seasons) and then yes, it is advisable to make root pruning as you cannot be moving the mother to a larger pot successively for several months or years, as a day would come that he would be cultivating not in a pot but in a pool. I think it should be done the day after watering. If done well it does not atrophy the plant. At most it will cause the plant to stop growing for 5 to 10 days, but then everything goes back to normal, in the end, in those 5 or 10 days, it was only stretching the roots again and therefore did not have "time" to grow. If it can be done with any ... theoretically it can, but as there are varieties of cannabis that are sensitive to specific treatments with which the rest get along, I do not doubt that there are one or more varieties that are more sensitive to this type of treatment or technique. However, I doubt that anyone will die or be seriously affected by having seen their roots pruned. There is nothing you can do to stop them from growing into the drain, just transplanting it into a larger pot. Good luck mate 🙏👍