I have been having major issues with IO Reef Crystals. The alk was so high my test kit was out of range as it stops at 14 dkh. I spoke directly with Instant Ocean rep and he said there are bad batches as they throw out tons of salt every month that don’t pass their inspection. Well they missed one. When using their salt with RO water I lost a several frags almost overnight because I did not test the alk before I did my water change.Nothing, as you say the parameters, pick which ever matches the parameters you are aiming for, no reason to not use IO in a reef, I do.
I am aiming for 9 dlk but don't want to treat new salt to make that happen.
Who has the lowest alkalinity salt? Red Sea?
Or tell me an easy way to reduce alk other than an acid.