I had it all the same side to side and a little higher at the back .
He has it banked against the rocks .
He has chosen 1 rock as his " home "
Funny thing when I turn my bright lights off in the evening he will put sand in the doorway to fill it in before he goes to bed for the night .
Yeah, some o the burrowing fish will do this. My jawfish puts shells over the opening at night and my pistol shrimp also puts shell frags over the opening to close the door at night. Funny to watch. Like they're saying "okay, bedtime, leave me alone." Haha