Extremely High Alk In Instant Ocean Salt
 

Just bought a bucket of instant ocean salt and made a fresh batch if 1.025ppt saltwater and the alk tested 16dkh!!

Has anyone seen or heard of this?

Thanks

Is it worth a 2nd test just to make sure?

Done it with 3 different test kits...

Could it be anything in part with the spring thaw?

What do you mean by that?

I've never kept track of a measured kh during the different seasons but I do know my own tap water has different characteristics during the spring thaw. Although I'd think this would more apply to freshwater tanks than salt as freshwater aquariums typically don't use RO water.

Was just spitballing.

Roll your bucket ?

IO did have issues a few years ago where alk was very high and killed a bunch of tanks. I would expect though, that they would not let that happen again. Where did you buy the salt? Maybe someone else has a bucket from the same batch they could test?

Ya I was told by the folks at J&L to always roll a new bucket of IO around for a while to mix up any settling while the stuff sits in stock. I would think it's a good idea with any.

happened to me as well - I was guilty of not knowing about the bucket rule. now that I do that, much better :)