Agreed! Although the tank looks as if it hasn't been "the cleanest" in a long time, which could have a lot to do with the high nitrate. You could easily have more than one significant thing going on.

No, you're right the tank has been suffering from summer neglect and I'm still having issues with cyano, but this is a pic from tonight. I'm still leaning towards bacterial bloom, unless there is something very LARGE hiding in my tank that would spawn like that?
All fish still kicking - one chromis looks a little beat up today tho, I think I have a big crab in there :(

I run both carbon in the sump and a vertex 180.

http://i266.photobucket.com/albums/i...kpostcrash.jpg

edit: no, tiny people don't live in my tank, that is the reflection from the tv lol

It looks a lot better today! Btw, those Chromis look really nice in your tank.

Thanks Myka, I really like the chromis, they are such an active little school :)