he was pretty mobile last night after i fed everyone. i thought they got his antennae, but they were just curled in. maybe they weren't nipping though. maybe it was just something on him. i'm working on setting up another tank for inverts for feeding purposes (my gourami likes shrimp) and as a refugium. if he lasts and still gets nipped i'll move him there or with the betta. either way i'm learning something. not a total loss even if he bites the dust.