I would still recommend testing properly for voltage (without the probe). The probe is not a fix.
As to the tang, was it still grazing on rocks, or not eating at all? If it was grazing, I wouldn't worry - that's normal behavior for them to graze but if it wasn't picking at all, then it's telling you there's a problem.
Jenn
As to the tang, was it still grazing on rocks, or not eating at all? If it was grazing, I wouldn't worry - that's normal behavior for them to graze but if it wasn't picking at all, then it's telling you there's a problem.
Jenn