Yea the male lyretails are the only one you really need to watch out for because when they get big they can get aggressive and not just to other anthias. Bartletts pick on each other and will kill each other off but you said one only. Dispar/ignitus are very calm and actually will school and very little aggression even between males..
Sunburst are beautiful but will be on it own and not be with the other anthias.
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David Polzin
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