I’ve had the apex about three months now. Temp prob was fine till about a month ago. I have to calibrate it every few days now. One day it reading fine next day it 8 degrees off. Almost crashed my tank the first time. Anyone had this issue before?
Never seen that or heard of it. Try posting on the Neptune Systems forum. This dude Zombie knows apexes in and out and he’s very active on there, I’m sure he’ll chime in
