Had our Zebra Eel (ZE) for over a year now (about 3 ft in length by eye-balling it when roaming the rank. It's pretty chill and relaxed. There is a constant power struggle (aka territorial dispute) between the ZE and a convict tang that always has ended with the ZE backing down and going back into it's cave structure.
The aquascape affords us to be able to see it during the day and usually hangs it's head out to just chill.
Few personal notes from having it:
- When roaming it can unintentionally knock frags and small rock structures over, otherwise pretty casual when swimming about.
- Between the ongoing territory battle with the convict tang, I have witnessed it do a subtle lunge at the tang do to being irritated, but leads to nothing since not having sharp teeth.
- Calm demeanor
- Regrets? At first because of feeding leading to elevated nutrients, but have now got that under control. Plan for this if it has not be brought to mind.
If something else comes to mind, I will post again.
Pic from the side of the tank. Barely visible body.