Review on 🐠 Lineba 500W Submersible Aquarium Heater: LED Temperature Display for Fish Tank by Ryan Hawkins

It seems durable and well built except where the metal meets the upper black part. It looks like some kind of epoxy that won't stand up to salt water. I use it in freshwater so should a little bit be enough? But I have it on the heating controller. "Inkbird C929A Wi-Fi Dual Sensor 1200W Aquarium Temperature Controller" I really don't trust the included controller as others have failed, but it heats the water just fine. I probably wouldn't use it without a dedicated heater controller. I'll update when I'm fed up. Edit: It's been about 5 months and it's still working. Heater 240 by itself and seems to be doing a good job. edit to edit lol: Well I didn't care but the temp is wrong now. The tank is 69 degrees and the controller reads 75 degrees, that's not a problem for me since I'm using the controller, so I just set the heater to 86 and the controller turns it on and off.