lemon and diesel little guy

Hi there Ideally you dont want to do much to Autos i would only take off leaves if really necessary, Try to pin back/move out the way the bigger fan leaves if covering lower bud sites.. If they really are stopping alot of light getting to new growth take them off .. but be selective you don’t want to slowdown growth, Best of luck 🌱

Classic potassium deficiency... These ladies are in flower now and no longer need only grow nutes... you need to start your bloom nutes, like now... I would also worry at this point, since you've been giving them only grow nutes, that you've created a nitrogen toxicity which will lockout other nutes such as calcium... so flush your plant - 3x the pot volume of pH'd water but into that last bit of water, add some bloom nutes only... then let her dry out. When you resume watering/feeding, if you feel you MUST give her grow nutes, only give about 1/4 strength and really pump the bloom nutes. A PK booster would also be very good to add in... Good luck