I've had issues recently with Jager heaters. Was a huge fan for decades. Had one go almost 20 years. The newer ones don't last anywhere near as long. Had the glass tube of one actually shatter in the sump and ended up poisoning the tank. No bueno. Had another exhibit considerable condensation inside like moisture was seeping in. Seems like when they transitioned away from Ebo quality went down. It appears they're now owned by Eheim, which usually has very good quality.
Colin diving in Kona is wonderful. I've gone there 3 times for that. Keep an eye out for the dark Hawaiian long nose butterfly. They exist only in that area to my knowledge. They're like the regular yellow ones, but can have large dark blotches on their sides, like when my foxface rabbitfish is getting all agro.