What happened to my salt?

[GMGQ]

I agree, it's the humidity in the room. Mine used to do that too, the top layer would get almost rock hard. I thought I was sealing the lid tightly too.

But now I use a small hammer to give it a couple of whacks to seal it. No problems since. (of course I need to give it a couple of whacks the other way to open it each time).

BTW, how are you mixing it? I have a powerhead in my change water tub that's on 24/7, so even when I had chunks, they would dissolve within a few hours.

Originally Posted by Delphinus

Exposure to humidity maybe? ... my salt gets like that towards the end of the bucket but usually still dissolves for me if I break it all up. Usually the stuff under the crust is still fine too.

[Beverly]

I agree with humidity too. Had that happen to one of my pails. Now I close the lid tight (like I did before) and put something heavy on top of the salt pail to seal it even better. No more hard layer on top of the salt.

[midgetwaiter]

I had this happen with the last bit of an IO bucket recently. Looked like all the calcium was precipitating out and leaving a film on the inside of the bucket.

I just diluted it and used it in the brackish tank