Yes, they do look like a Trichodina type to me, all , you know, swirly.
They ripped through the Rainbows like wildfire, along with the Redeye
Chubs, but did relatively little damage to the Flagfins, killing only a
few. There is another shiner in the tank as well, looks like maybe an
Alabama Shiner, that has also been just fine the whole time. The Bluespotted
Sunfish in the tank have been wholly unaffected.
I checked the gills of many specimens, but found no parasites on them.
Everything seems to be recovering now, but I'm not convinced that things are
completely safe yet.
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