Glad to hear there's some type of treatment for what I've called "Mad Discus Disease", and it's Metro based.
This is how I found the forum in the first place, after losing one of my cherished Wild Discus. Like the other posts, it usually happens to my wild fish and not the domestic ones.
found this thread searching board for "whirling"
though it wasn't at top of search results.
i was looking because on facebook groups (non-discus), i see whirling come up. people have video of their fish swimming like a kite out of control on a windy day.
i myself observed it recently with black neons when i was q-tanking them.
as i read this thread, seems like there is not a clear cause/effect/cure to whirling
in my case with black neons, it was due to water changes with unaged water and a resulting ph swing. i compounded it with more water changes, thinking more WC was good (but forgetting about ph swing)
i started using old water from my Discus tank, and the black neons stopped whirling and dying.
whirling, seems like a generic term that is used to describe a behavior that could be caused by many issue, correct?