Snowflake Eel hanging

spartan117

Reefing newb
Okay the title is a bit off but I don't know how else to describe it (also sorry if posted to the wrong place, new here)

I have the tank heater suctioned onto the side of the tank right next to his housing and he'll come out once or twice a day to sit down between the suction cups and the heater itself. He'll make himself a little butt and sit in an S shape on the heater, or sling himself over it in an "n" shape and just hang there for a bit before going back into his house. Is this normal behavior for them or a kind of quirk? He doesn't seem to be distressed when he does it and the temperature stays within 75-80°F.
 
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