Wiggling molly is wiggling
My dalmation Molly has been wiggling frequently for the past few days. I noticed that when the wiggling first started it would "sit" and wiggle on the top of the castle for a while, swim away for a minute, then go right back to the castle. At night it goes into the castle and goes out of sight high up in the castle. It eats well when fed, (flakes or brine shrimp), all nitrates, nitrites, ph, ammonia etc etc are perfect. All other fish seem perfectly healthy. Even the Molly gets up and wanders the tank, but even while doing so... It's always wiggling. Why? Is it prego? It poos normal and swims normal soooo what's wrong???