I checked your profile, and I hope you know that your scooter blenny needs a consistant supply of pods
. Unless hes eating enriched brine or mysis, he won't last. Also it's best if the nori is available during all light hours. Tangs should be able to graze all day long, and the star will not eat himself to death. Mabye try giving the CC
star some meaty food like shrimp or fish chunks. Your tank is also to small for any tang. IMO
tangs should have at least 6' tanks, but at the very, very least no smaller than a 75.