I also recommend NOT listening to everyone on here. Some of these people on here have no clue how to read or haven't done research themself. They'll jump on some bandwagon that a person told them once years ago or whatever. I know this because people tell me to flush my living soil and PH my water when growing with 100% organic dry amendments in living soil. idiots. Your plants are fine man :) they look great! Not stretched, not short, no burns, life is good. Dial in a watering cycle and stick to it the entire grow. Frequent small watering are best. If you dont know how much water to give, Water only when the first inch of the top soil is dry. I recommend mulching your soil too. It will help keep the biology alive. If growing with synthetic nutes, follow the manufactures recommendations. I would dose them on the low side. Salt buildup is real, and over using nutes can lock things out. It can be a pain in the ass if you cant measure PPM or PH. I recommend reading up on living soil and dry amendment growing. Legit water when dry and amend every 3/4 weeks. Its stupid easy and the terps/smoke is prestige in comparison. Hydro growers are starting to notice this and have started adding beneficial microbes into the feedings. (Something that occurs naturally in living soil. Good luck! :)