Dont mess with it ph probes are recommended changing 6 months to a year and much sooner if exposed to air. I would go with the test kit. My probe ready 7.6 and elos test kit reads 8.3.
__________________
360 gallon sps reef, 180 gal sump, bubble king supermarine 300, 4xmp40Wes, 2 x 6215 tunze waveboxes, 4 ghl mitras
360 Reef Tank
|