I only use ocean forest and fox farm line of nutes and have never had a ph problem. First, runoff is not an accurate test of the soil's ph. Get a good soil probe. Second, if you truly have a ph problem, it is most likely overfeeding or not ph'ing nutes before you feed.
Nute burn. Repot into something larger and only give it water for a couple of waterings. Be carefull with the fox farm nutes. I go Feed- Water-Water- Feed.
If you are only using a 3x3 tent, why are you using a 600 watt light? I have a 3x4 box and get massive buds with a 400 watt. I suggest to go down to a 400, save on power and it wont throw off as much heat.
I just got done messing with mites on two plants 3 weeks in veg. I tried sprays and the only thing that worked was a hot shot no pest strip, put it in my grow box during the 6 hrs of lights out and it killed em all.
I always dry out soil as much as possible before harvest, within reason you dont want plants to wilt, and Yes I give 24 hrs of darkness to boost resin production.
I have always just scraped them with a razor blade, but on my recent Trainwreck harvest the buds were to sticky and I couldn't keep up, so I put down the scissors and started plucking. The buds came out looking better than the scissor trimmed buds. I am interested in seeing how well plucking...
Not sure if thats considered foxtailing or not. It happens on all Green House Trainwreck buds, so I think its more of a genetic thing. Ive had foxtailing buds before and usually the big colas have calyx towers all over them and not just the tops. Either way its new growth and its a good thing.
Yah, thats what I have. Not sure of your setup or how long you veg/ how big you let em get. I usually flower 2 large plants 5 or 6 ft. under this light, if you want to do more you could just get the 600 watt and use the dimmer if you didnt need the extra light.