i have a 300 gallon fowlr tank with a couple of anthias,2 tangs and 2 clownfish. ive always liked damselfish, but they always seemed agressive. what is the most peaceful damsel, i could get for my 300?
Yellowtail damselfish (Chrysiptera parasema) are pretty peaceful for a damselfish but they are all like cichlids and territorial.
Some of the demoiselles (damsels with lyretails) are reasonably peaceful and Chromis can be kept in large groups.
Anthias live in large groups and if you only have 2 or 3 of them, you might want to get some more. Males set up a territory and have a harem of females. try to have 1 male and 4 or 5 females.