Tankmates for sfe's-
No gobies, dottybacks, basslets, or blennies or any other small eel like creatures.
My sfe eel ate 2 convict gobys, and just this saturday my day old neon dottyback. It swim near it and It grab it and flew in its cave.
Angles, bigger pygmy angels, butterflies, bigger clowns, triggers, basses, tangs.