Wifey clean around the tank maybe spray something over it? Kids throw anything in it?
I know your an experienced reefer but I have a hard time seeing salt do that.

Oh, salt can do that, but it's not usually isolated. It was either Kent or IO a few years ago that had massive alk levels and wiped out crap loads of tanks, just like this.

ugh.. the 'ol bucket full of calcium carbonate shot.. breaks my heart every time I see it. Sorry to hear dude. Been there, done that, got the wet t-shirt.

wife knows better, one of the tanks on the system is hers
kids know to stay away from the sump

Have you mixed a fresh gallon of IO salt water to test what exactly is wrong with it?

Please don't do that. Please send a sample to IO. If there's an issue, and I'm inclined to believe it probably is the salt, then IO should know about it or more peoples' tanks could suffer the same fate as yours.

Tim,

I'll throw this just for the sake of argument.

If you are the manufacturer of say X-Salt and you have one user claiming your salt nuke his tank without any concrete evidence leading to that claim. Are you gonna assume that he is right knowing he is Mr. Saltwater Guru?

Isn't it also a right of every forum member to know whether the claim is true or just a false claim?

I'm not saying that Spit.fire has a false claim, maybe he is right on this that the salt really nuke his tank. But for now we don't know as he can't give us concrete proof that the salt really nuke his tank aside from assumption.

I just feel that it is our obligations to the community to post facts not false claim is this kind of posts doesn't do the community any good. The forum should't be a place to post unsupported claims and defamatory posts.

Again, I'm not saying that Spit.fire is not correct on his claim. Up to this point, there is no concrete evidence on his claim aside from assumption. I have lots of respect to the guy as he is a very experience reefer.

I seldom posts here but rather read all informative posts that experience reefer post here, but I thought I need to throw this one out here.

agree with crimper should be easy enough to make some water test it and see what was actually wrong with the salt ! It could help somebody out who bought that salt from the sale. I have a couple buckets from the sale and have already done water changes in both my tanks . Thread tittle's like this could scare people away from using a great product . It would be nice to see what in the salt caused it if possible

Touché to what Myka and crimper said.... I was thinking yesterday of posting the exact same thing as crimper. If I lived closer I would come grab some salt from that bucket before you throw it away. I trust your experience also spitfire but think it would really be beneficial for you to give a sample of that to someone to test if you don't feel like it yourself. Or send it in to IO like Myka suggested, I'll even offer to pay the postage if you're over it
Really sorry to see this happen to your tank :(
Pretty sure that's the most popular brand of salt and type of salt used, so it could have an impact on a lot of people who switch brands of salt too quickly now because they're scared of suffering the same fate as you.

So please help the community find a reason, if it takes me driving out there to grab a sample then so be it, if you're sure it was the salt.

Plus if you toss it and it turns out to not be the salt you haven't solved the Scooby mystery.