i bought a feather duster for my tank he came out alot in the first day and i have not seen him too much since is this bad because i know he is still alive.
i have small feather dusters and a skunk shrimp and there all fine. it's probably the amount of food or flow or maby he is still getting used to it or just not very hungry. odn't worry, giv him time and work on your flow maby.
I have one tht stayed in for about a week he was dig his back end into the sand and making a bigger tube when he was done he started to come out all of the time.