Any ideas what this is?

[Buds Buddy]

I use FFOF but no peat so can't comment that way. But I keep my pH 6.2 - 6.5 in FFOF only.

 

[LelandBelloff]

Ok so I do have the little RH/temp in with my mugs and I have the 62.
I am going to raise the ph in my water and nite water and go 1/4 strength. I’ll keep everyone posted

THANK YOU