Alk is up to 8.5, I'm going to shoot for 10 and try to hold it there.
It's very odd, I don't think it's directly related to the alk, but after I dosed last night, what seems to be a large porite colony has appeared and I've got hundreds of little baby shrimp. They could be copepods, but they tend to be longer rather than bulbous and have either black or green stripes on their back.
Any ideas on what these are... sorry no macro lens and that's the only way I could get a pic of these things, the biggest may be a quarter inch.
We also found an inch long swimming critter. I have tentatively IDed is as the epitoke of some polychaete worm.
Anyway, that's the update.