There was this little spider that lived in my shower recess. He (or she) had been there for weeks if not months before I accidentally killed him while cleaning the other day.
My question is wouldn’t he have needed something to eat? I toyed with the idea of capturing him and moving him outside but never did. He sure wouldn’t have been going outside to eat while I was at work and then returning to his web in my shower recess every day. Could he have gone for weeks without eating anything at all? What gives?
Spiders are predators who need to eat, same as any other predator.
What you’re missing is that tiny house spiders are eating even tinier house bugs, bugs that you can’t see unless you know they’re there and go looking for them, bugs like teeny mites and fruit flies and baby cockroaches and silverfish and other itty-bitty things.
So when you see that a spider has set up housekeeping inside your house, ask yourself what it’s eating. And then go clean the house. 
From the Google ad at the bottom of the page:
Diabetic Eating
Yes.
If Australian house spiders are anything like those over here they can go for several months without food or water.
Link.
"Big fleas have little fleas upon their backs to bite’em.
And little fleas have littler fleas, and so ad infinitum."