I used to have powder black too .. but she turn aggressive towards other two tang.. do notice some white spot little on and off due to aggression .. so i remove it .. now they seem happy ..is the powder blue doing good in that tank?
do you use an UV sterilizer for him?
Tanks looking very nice!
You waited 3 months before you added all the acros?
i do not run uv .. maybe luck perhaps?
Actually i couldnt wait .. not a month i already put some acros.. lol