My reef looked like crap when using instant ocean reef crystals. I had all sorts of issues. I switched to h2ocean and it's now a completely different reef. The colours and growth are way better and my parameters are more stable too. Everything looks a lot more healthy. I'll pay the extra $20 to have a beautiful reef.

I too had a bad experience with a bucket of IO, it wiped out all of my fish and inverts and about half my corals. By the time I figured out that the salt was to blame it was too late. I've since switched to DD H2Ocean. I did start a new bucket of that recently, I'm trying to think back on whether that coincided with the start of the cloudiness.... I did a 10gal (20%) WC somewhere around that time but I can't say for sure if it was before of after the cloudiness started.... Maybe I'll try to mix up a fresh bucket and see how that looks. Thanks for the input, will update after I've investigated the salt.

Water cleared up! Made a deal with a fellow Canreefer for a UV sterilizer and set it up yesterday around dinner time. By 10:00 the water was noticeably clearer and by this morning it was pretty much perfect! Looks like it was just a bacterial bloom in my case after all, was sure lasting for a long time though.

Thanks for everyone's input