First Grow (Vision Seeds NL Auto). Yellowing leaves! Please help my girl!

[A4]

I have the Hannah 98129 but you could probably get away with the 98107 for $35. There are more expensive ones but Hannah has always done a great job for me.

http://www.amazon.com/Hanna-Instrum...id=1371492794&sr=8-1&keywords=hannah+ph+meter

 

[86'ed]

Good lookin out! Thanks! I'll look into ordering one of those ASAP!