tall & lanky authoe

day 56: bloom feed 1/2tsp per g ~ added some rock weights to 2 branches. 1) to help the lower buds receive more light. 2) to see if the extra weight will cause the branch to strengthen and thicken therefore increasing bud size. day 58: tea feeding 1/4tsp per g day 61: CaMg & bloom feed, added another rock weight to each branch that I'm testing. So far the branch has almost doubled in size where the bend is and I've noticed the buds are larger. Is it bc of the weight or normal bud development? Idk noticed some leaf tips turning very bright yellow, they're not even near the grow light. Measured dli at top of plant and its only 21. Almost every single bud is foxtailing. I think it's PH stress & not heat. Going to lower my PH to 6.0 rest of the grow. Struggling to keep my RH in check.