That makes me feel better! It is a 'he' so that probably aids in my worries not having the eggs to fall back on as a warning sign its coming.I think that bimac is way to small (and therefore young) to die of old age, so I think you can relax about that for a while. If it’s a female, it’ll lay eggs before senescence, so 50% chance you’ll get a warning.
I did notice he broke off a piece of rock, grabbed a clam and shoved it in his make shift second home and put the rock over the front entrance so the clam couldn't get out I am guessing? These guys are a mess and total characters!