Crabs: To have or have not

[Maverick00]

Ive had an alright experience with hermit crabs. I havent had any issue with them eating the coral that i have in the tank but the little bastards will knock over frags if they arent glued or secured down. I did find they like to fight and kill eachother, ive lost over 50% of the ones i bought from day one. I personally enjoy seeing a few roam around while exploring the tank but i wouldnt go nuts with them, a couple is good enough for me, Ive found my snails do more work especially when it comes to cleaning the glass.

I bought an emerald crab a few months ago to try to clean up some bubble algae, didnt work. I havent had any issues with him either but he does seem to be always ****ed off. If you point at him he tries to pinch you!