the ph of my water is 6.6 and the runof's 6.7ph,i thought that praying was a sighn that they are growing and reaching for the light,i got 3 different tipes of soil mixed with perlite or coco coir as i said,the bigger plants have no browning on the tips but the old leaves are damaged as u can see,so is it possible that the smaller plants are still recoveryng from a lockout and the bigger ones maybe recovered,the little brown burnt tip on the new growth u see is from tuching the bulb