One of the Plants the bottom leaf(the Ones that come before the Marijuana leaves....Is slightly burnt or dried at tip is that normal.....?

and also some of the leaves have white powder look barely but its there....I know its probaly from the fact that they were sprayed with water in begining...I stopped this...Will it just go away or should i use something....

Im also adding in Nutes on friday...
acidtrp1 Reviewed by acidtrp1 on . First Grow using Cfls..Watch And Help I have 3 Snowcaps plants going as we speak...im also currently germinating 2 sour deisal and two purple start plants...Im usin CFLS in a indoor cabinet.....I might switch them out when i Flower but will see... I have 5 23 watt Cfls right now but im adding more as needed.....so i only have 8000 Lumens going in my area...but it is a small area....any help or advice will be appreciated...im starting this log kinda late im already on day 15... heres the pics Rating: 5