Crabs that stay out during the day...

I have an obsession with crabs and urchins Despite them being pains in the butt and knocking everything over.

I had emerald crabs for a while, but you never really saw them

are there any crabs that actually come out during the day and are interesting and are reef safe

 

I have a sally lightfoot that is always out. They get alot of mixed reviews but I have had mine for about 6 months now without any problems in a reef tank. Just keep him well fed. It molts in one big complete piece molt which still freaks me out when I see it.

I also have a longspine urchin for quite some time that is doing well. I have had it mow down a fresh frag of 2 magician pali's once but outside of that never any issues.

 

probably not the type you're looking for, but my hermits are always running around...

 

I have the hermits... some of them are getting huge too lol.

Are the Sally lightfoots okay in the reef any issues?

 

sure if you don't mind them steeling food from your corals... Mine was a pain in the tail. Everytime I fed my sebae he was trying to steal the food. I had to keep a long dowel around to keep it at bay while feeding the sebae. Urchins are cool but my tuxedo would crawl over everything and always was picking up my hermits...

A larger tank may be more suitable for these and yours may fit the bill.

 

Filter Feeding crabs.

 

Staghorn crabs stay out, and they are pretty cool.

staghorn crab - Google Search

 

Those would be porcelain crabs, and they stay out some and hide some.