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So I did get a hydrometer and it came with two, I've had people tell me they are mostly unreliable before. I did do some experiments to be sure and they seem rather consistent(placed them in different places and switched them to be sure they stay consistent).
As for the substrate I already made...
I know smithi needs around 60-70% humidity and I've struggling to get it around there(it's at 78% rn when prior it was 85%) I've kept it around the ac. I've switched substrate, was reptisoil now coco fiber(which helped out a lot). I'm at a lose here and was wondering if anything bad will happen...