Hey WH, cute doggies!

I use a Hanna Primo meter, calibrate using their 1382 solution 2x month or so. I also use the Hanna pHep meter for temp and PH.

http://boards.cannabis.com/attachmen...ctive-6802.jpg
MVP Reviewed by MVP on . Hydro Nute Problem with pics... Help Needed I've been trying to figure out what type of problem I have here. The bubbler hold 4 plants (2 master kush, 1 blueberry, 1 super skunk). Two of the four plants have the same issue (one MK and the super skunk), they other 2 seem okay, maybe slight P def. Leaf pics are from MK, they are the tallest. I also have 2 MKs in dirt in same room with no problems at all. Here are some details: -indoor -hydroponic -hydroton -DWC system type -Water is 1/2 RO and 1/2 tap -Water pH is 5.8 (+/- .1 to Rating: 5