I have a timer on my light so it turns off before I come home from work, when I turned my room light on I saw a small crab with a red body with white spots and white legs, he’s probably only about a half inch across, any idea what it is?
Can you get a better picture? Maybe catch him and put him in a tupperware dish. A lot of people say "I would never have any crab in my tank!!" But they're not all bad IMO. If he is and if you have a sump, that would be a great place for him.