So...I measured GH/KH/pH tonight. I am wondering if my test kits are bad.
This came out at 5.5-6.0 drops,or 5.5-6.0dH, sounds about right.
Came out at 7.75 or so, sounds about right.
Tetra Laborett - 36 drops to change from red to green
Hagen Master Test Kit - 7 drops to change from pink to blue (*20)
So Tetra says 36dH, Hagen says 140mg/l(ppm). According to this Hagen calculator
, 140ppm equals a GH level of 7.8.
Tetra kit is bad?