you can try feeding them sotong also. I realised my picasso loves sotong when I was feeding my anemones, it kept stealing from my smaller sebae. it is quite smart of him not to get stung in the process now, i prepare his portion as well when i feed the anemones.
Bro rapalla, do update us on your Bursa trigger. I am thinking of adding another in. anyway if it gets too aggressive, I might just set up anpther tank for triggers only and see them fight day and night . oh then i will have to get ready a hospital tank