I introduced 1 male lyretail into my 80 gallon tank in November that housed 1 firefish ,1 clown , 1 melanurus wrasse and did not have any issues until 3 weeks ago I noticed my firefish had disappeared up until after my water change yesterday . I noticed the Anthias chased in back into rock and have not seen him since yesterday . I thought Anthias and fire fish was compatible? Any thoughts ?