Whatsup fellas :rasta:

Alright so my babies are on day 21, and they're looking pretty nice id have to say. Ive ordered some Fox Farm nutes for them that should be here in a couple days.

I have a soil PH/Moisture/Light tester, but im not sure if it works well or not. If so, then my soil PH is at about 7.5.

Im having a little problem with some of the leaves getting brown spots on the tips. Ive tried using a little ph down but it hasnt helped.

Heres a few pictures so you guys can tell me what you think. Any advice would be appreciated.