Thanks, I also thought it will take awhile for him to come out and about. Does your Mandarin eat frozen or pellets?That is awesome that he is out and about!
The Tanaka will not touch pellets but does enjoy frozen mysis. I also added the Algagen Apocyclops (Apex copepods) which are all over the glass and I see him go after them. I might add some rubble where I had the refugium for them to safely reproduce.