vdubb808
Active Member
I have a question regarding PH in coco coir. I have just started using canna coco in airpots and tap water with a ph of 7.0. The runoff from the airpots is coming out at 6.0 and within 4 hours is returning to ph 7.0. This is straight tap water. it goes in at 7.0 and the immediate runoff is 6.0, 4 hours later the same runoff solution is ph7.0
Also I have just started using a 1/4 strength solution canna A+B with some Rhizotonic for some seedlings. I used GH powdered PH down to get the nute solution to ph 6.0 and 4 hours later I tested the remains of the jug and the ph had returned to 7.0I am using drops to measure ph.
Does this mean that the coco is holding a nice stable ph for my plants ? will this effect continue throughout the grow? Do I need a ph pen or is coco no worries?
Thanks. Scroggsy.
It sounds like the problem is the way you're testing your water. I'd get a decent or good PH pen. I have 2 pretty good pens that I use. One does everything (PH, EC, PPM, Temp) and the other is just PH pen. The PH pen is used on my outdoor plants and the other stays in the room. I've tried using strps to test and it just doesn't cut it and satisfy my need to be super precise.