Hi, this plant is getting brown tips on new growth and existing leaves are yellowing, please help me. I use tap water that I add silica to then ph to 6.5-7 using apple cider vinegar. i also recently started using cal-mag supplement at 1/4 strength. I first let the tap water sit for a day or two so chlorine evaporates. I recently repotted and added bone meal to the soil in new pot Thank you!