Thoughts on unnexplained (and very sad) die-off

[jostafew]

Thanks for the feedback guys. Neal, that's a good suggestion about keeping the skimmer running but taking out the cup. I did turn it off for the 12 days during treatment as recomended, but you're right I could have left it running (though not functioning) for oxygenation.

As for the SG decrease, yes it would have been very gradual, over the course of several months.

[albert_dao]

So... Were you using Reef Crystals?

[jostafew]

Nope, was using IO. Same as I had been since day one. Odd thing though, this batch had a much finer consistency than the previous buckets and I learned the hard way that it mixes up with a lower SG than usual.