They have been through a lot together, including 3 fishtank moves, one house move, an outbreak of fish influenza, ich and outlived every fish I have ever owned. Being loaches they always cuddled and slept together, entangled under their rock and swam their little dances when it rained.
5 Days ago, Jetsom escaped out the back of the tank and fatally injured himself on the wires out back

Everyday afterwards, Flotsam has been fully buried under the gravel apart from feeding time. I have bought another loach, not to replace Jetsam but as company because I know they are social fish.
Is there anything I can do at all? I know it's because she misses him.