Yeah, a dimmer isn't a good idea I agree.
Switched bucket to
~1ml/L sensi bloom
4ml/L voodoo
1ml/L camg+
Aaand my pH pen broke..... jumping up and down like a Jojo. Probably a bunch of crap sitting on the sensor or whatever it's called so left it in a glass of water maybe can dissolve some of it.
If the reading don't settle down shake it down like a thermometer. sometimes an air bubble can get trapped in there