So your CBB’s are eating pellets then right? Also, did you use an acclimation box or anything special when introducing the CBB’s to the tank with tangs?I have a large system but I keep my CBB in my QT for months. They eat well and clear the aiptasia from my QT system.
I got tangs too. Now I have Purple, PB, Yellow(In my refugium/sump) Desjardini, Convict. In addition to this I have a nasty 3 inches Domino damsel in my DT.
I also feed pellets only when I am travel.