Two days earlier they looked like this:
The basics: 90 gallon with a one-year-old Oscar, 3 SDs, 1 Firemouth
2 Eheim 2215s, 70% water change every 5-7 days. Ammonia & nitrites are always 0. Nitrate is orange before water changes. (API tests)
PH in tank and tap is 7.4, KH is 6, GH is 8, temp 79-80
I use Prime, no salt,
This tank has been up since May. His first tank, a 100 gallon piece of $%^& by Oddysea, burst. He first had the problem there.
He eats Omega One pellets, Massivores, freeze-dried krill, Omega One Veggie Rounds. About half his meals are soaked in Vita Chem. I'm trying to get him on an every other day schedule, but he begs like a puppy.
I've tried removing everything from the tank except two plastic ornaments. I've tried correlating the emergence of these ghostly spots with how long it's been since a water change, but there's no obvious connection. They don't go beyond the dorsal fin.
He's had these once in January, March, and April, and at least twice in June. The first day you can only see them up close at a certain angle. In 1-2 days you can see them from across the room. He flashes. In a day or two they're gone (until recently). My Firemouth and SDs are fine. This video was made in mid June. It shows how completely these things go away between episodes:
http://www.youtube.com/watch?v=okcQ1G0shZA&feature=related
They're getting worse. For the last two months he's had them most of the time. I've tried Seachem Paraguard, the Melafix-Pimafix combo, and Seachem Neoplex. I'm having trouble finding anyone who's even seen this.
Here's some recent pics:
Here's an example from June of how quickly they used to come and go. One day:
And the very next day:
Has anyone seen this?
