Hmm weird.
Mike, yeah i used to run around 5.7 but i kept chasing cal issues and it was making me nuts then i saw this chart and noticed cal and mag both drop off a lot under about 5.9ish... Since switching to 6.1ish i have had no issues.. but every grow is different.
For me it was either led light too close or ppm too high. I been keeping my ph 5.8 ish. Never really noticed any difference between 5.5 or 6.5. Just a natural reaction to get it below 6. Probably has something to do with water and what food ya use.
@Larry3215 i just switched over to Jack's Tap formula 15-5-20. how is the pH stability of the 321? i'm running into an issue at about day 3 or 4 where the pH drops like a rock to mid 4.
thanks. did you try using Silica with it? i'm gonna try that and see if it helps pH at all.
Nope, i have never run silica just straight jacks 321 from seed to harvest.
i meant when you tried the Jack's Tap. we are talking about the same thing right? 15-5-20 one part
When i used the tap version.. and the normal version i don't add anything other than cal and mag.. i have never added silica or any other addons to a grow. Other than Southern AG of course...
Depends on the water.. mine doesn't, your plants will let you know if they need more.
My basement is cool also. But 2 philzon 600W dimmable lights are hot. And really heated up my tent. Thats why my bucket hangs down out the bottom of the box. I find that keeps my water cool.that sucksI am lucky that i have a basement.. it stays 65-73 all year, so the lights in the tent take it to a nice 78ish..
I've done it like this for years. Never needed anything but nutes, and p.h. down. My water is around 8.2 ph. I never had it lower then 7.9.
wow 7.9 is insane, my plants would be dead in days like that. or at least on their way. But whatever works.