I got the cats this past Thursday, they spent two nights in a 5g bucket with an airstone and refreshed water as necessary (they arrived sooner than expected and I hadn't had the chance to get their tank ready yet), then Sunday they were moved to a newly set up, thoroughly disinfected (and well rinsed/scrubbed) 20gH whose filter was seeded with media from an existing tank.
Both cats were fine in the buckets and fine Sunday, the day they were added to the 20g. I did notice on Sunday that the one that is having problems, in particular, seemed to be spending a lot of time around the heater, but it was late when I noticed that and I thought they would be fine for the night.
Monday I woke up deathly ill myself, so unable to do much of anything to help, and found the cat in question swimming around the tank erratically with her whole body spinning, doing barrel rolls. I added an IAL but wasn't able to do much being ill. I did notice Monday that the other cat a couple of times went after her and they would do the normal rapid rings around each other for a minute, then part ways and the afflicted cat would resume her spins.
This morning her swimming seems more irregular and her spinning seems to be going faster. She does occasionally bump her nose into things, but turns and keeps spinning in another direction.
1. Water parameters NOTE: I was very sick all day yesterday when the spinning started and wasn't able to test the water. However, it was brand new clean water in a newly set up QT tank seeded with good filter media. The water should have been clean. I do tend to have a high pH out of the tap, but I've successfully raised this species of cat in my tap water in the past and drip acclimated them, so I did not expect problems. I will water test today and edit in parameters when I have them.
a) Temperature range: approx 76-78? Need to check again. EDIT: temp got up closer to 7.8 -8, so I bumped the heater down a bit.
b) pH: 8.2 High for this species, I know.
c) GH: I do not have a GH test kit currently.
d) KH: 6
e)Ammonia, Nitrate, Nitrite, levels: 0ppm+ (may have had a slight greenish tint, but no where near 0.25ppm), 0ppm, about 2.5ppm
f) Water change frequency: None yet, just set the tank up.
2. Tank set up
a) Size: 20gH
b) Substrate: Barebottom
c) Filtration: HOB rated for 20g tank
d) Furnishings: PVC pieces
e) Other tank mates: Just the two Pseudomystus siamensis in the tank, intended to be a QT
f) How long has it been set-up: 2 days
g) When was the last new fish added: 2 days ago when I set it up
h) Foods used and frequency: Fed for the first time in this tank last night for the benefit of the healthy cat; fed them New Era Catfish pellets
3. Symptoms / Problem description
One of my two new Pseudomystus siamensis is spinning. She swims forward and her whole body rolls, in barrel rolls. She has no other outward signs of disease or stress. The other new P. siamensis acquired and added at the same time is showing no signs of disease, stress, or spinning.
Looking closely at the afflicted cat while she spins, her fins are all spread, not clamped, and her dorsal and pectoral fins are angled in such a way that causes her to spin, as she would angle them if she wanted to intentionally spin.
4. Action taken (if any)
Added one IAL leaf, couldn't find any possible diseases that fit and was too sick to perform a water change, so it was the only thing I thought might help that I was able to do.
5. Medications used (if any)
None.
I will try to get pictures and/or video when I get my water parameters. Has anyone seen anything like this before? I'm completely lost, as she doesn't seem sick aside from the spinning.
EDIT: I should also note that these are both juveniles, 8 cm TL on the healthy one and 9cm TL on the spinning one. I do have plenty of pictures of the fish before they were added to the 20g. Here's a couple: [X] [X] [X] The cat having issues is the larger of the two. As you can see here, she was fine when she went in the tank.
EDIT2: Couldn't get any clear pictures because she was at the back of the tank and I've got it unlit since they're nocturnal cats. I'll try again later. Here's a video though. Her spinning has slowed down and she's staying in the same general area - before she was moving all around the tank. I'm about to start a water test, I'll get those parameters up when I have them.
(Click the image to go to the video, I uploaded to photobucket so I can't imbed.)