What heater and thermometer were you using? I am not sure I have seen one for aquariums go much above 90. Also is the water cloudy, the heat can cause precipitation.
Edit. Unless you are on a controller, but that shouldn’t be set that high from what I would think
Ok. This happened in my mixing brute can. Not the tank.
I had 2 - 300 watt titanium heaters that have no built in thermostats in the can that I did not unplug.
That’s HOW it happened. I know how it happened that was my concern.
No one seem to have any comment on what impact, if any, raising the temperature of saltwater to extreme numbers might have on chemical composition of the water. At this point I have gone ahead and used it, (after it cooled down to 79). Checked calcium and all which were acceptable.
hey shell, Test it for alk if that's out of whack test for Ca. I'd use it in my Fish only regardless. Any corals? i'd want to be sure I didn't boil out any ALK .
I would look things over well and see if it has taken on some water. If you had it set to high, and it went super hot, I would adjust it down and see if it shuts off. If it does, I would not hesitate to use it again. However I always use a separate thermostat controller along with my heater. Amazon for $25 with a titanium probe. It acts as a secondary shut off or on if the thermostat on my heaters go out.
In the past (85 to 2005) I have not had issues with heaters going out and burning up a tank. There were a set that came out over the past 5 years that started cooking peoples tanks.
Put it in a 5 gallon bucket and see if it shuts off at the temp you have it set for. If it does, then add a second thermostat to it so that if the built in thermostat burns out, you will still be safe.
Water should be fine but would check over heater make sure if plastic wrapped it did not split or bubble up and yes I read its your mixing heater. Cant say that I would put controller on it unless you have it running all the time in bucket 24/7
I would think the higher temperature would kill all the good and bad bacteria, living organisms, and some on the elements in the salt. I would suggest dumping the water and mixing a new batch and know that the water is right.
Test salinity to see what it reads but my guess is that the traces were affected by high heat and changed aesthetics of salt mix. However for simple water changes or adding water may be ok to use