Can't find the Rainfordi but how long have you had him. I tried twice in a 24 gallon and they didn't last more than 6 months. Reason is they get their food sifting sand and if the
sand bed is not big enough to keep up where their food demand they starve unless you can get them to eat something else.
Had him about 6 weeks. Tanks is only about 12 weeks along. Started with live sand and just a bit of Alive rock. Fish is eating something. Seems fat and happy, like a cat, only comes out when it feels like. Can't give away it location yet. There are like 52 others still trying to find it. But, thanks for the reply. Was starting to think the cold weather caused all the dead wood.