She lives in a 40 gallon breeder tank filtered by a Fluval 306 canister tank. She lives with a Gourami and three Red-eye Tetras. Water is in good condition and temperature is around 80 degrees. Gravel substrate with silk plants, hiding logs and other ornaments (which she has knocked over)

Just recently she's started swimming crazily around the tank. She jumps out of the water, whips herself around, digs at the gravel and darts from end to end. She's never done this as an adult (when she was younger, yes). At first it freaked me out, but she seems happier than she's been in a while - not just sitting on the bottom or hiding. My other fish seem fine - no behavior changes. She does this intermittently and swims and sleeps in between.
But now Ethel has a nasty gouge and what looks like white pocks and scratches on her body. It doesn't appear to be Ich, the spots are too large and not symmetric. I think she may be hurting herself in her flailing or the Gourami is doing mean things in the dark (I keep an eye on them during the day).
The rear flank gouge is deep enough to see pink flesh and I'm very worried about her. Any advice is more than welcome. I really don't want her to suffer and I definitely don't want to loose her. Here's some pics.

A close up of the gouge and you can see the white scratches in the upper right hand corner

Here you can see the Gourami and the white marks going around her eye and down her toward her nose"

More of her eye area - the white is even around her mouth


Thank you for any help - I want her to get better!!