I didn't want to write about this until my fish was better. Didn't want to jinx the recovery. I want to diagnose this tank so I know what steps to follow to make it safe. Here's what happened:
I got a 2.5 gal minibow for one of my females. I washed it out, filled it with dechlorinated water, let the heater bring the temperature to 78 and then acclimated the fish for 45 minutes (both temp and water acclimation).
Within three hours of letting her loose, she had clamped fins. I should probably have caught on at this point, but I had an exam and had to run. Within four hours, she was lying at the bottom of the tank.
I was frantic, of course, changed the water in her 1 gal tank, put her back into it. I also added some oak leaves for tannins. For two days, she lay at the bottom of her tank, only coming up for air. When she swam, she wobbled. This wasn't an SBD kind of wobble. It looked neurological, like she was dizzy, almost. I just kept changing her water and coaxing her to eat and hoping.
Yesterday, I woke up, did my usual, "is she going to be alive? I don't want to look", routine. Surprise! Happy, wiggling, "I'M STARVING!!" fish! Made my day.
BUT: What about this tank? I think there's something leeching out of this tank. Should I bleach it and let it sit out in the sun? Heat it? Anyone else had this experience, have any idea what this is?