Tail biting?

[HermitGuy101]

So Reverb is all round suicidal, awkward, and now... Bored? He seems to be biting his tail. I rearranged the tank and cleaned out the water and gave him some meds. Now what? :/ It's minor but I'm still worried. He seems to be recovering from his fall okay from last week. And he eats like a pig.

Here's a pic:

[ZackyBear]

Can't tell from the blurry photo, but clean water will help it heal. Should disappear after a few days :3

Also, try showing him a mirror a few minutes a day, or floating something he can nudge around the tank to help with boredom~ plastic ottle caps sometimes work