Not sure what this is

[jk_s124]

Small round green dome shaped thing just above crab shell. I pried one off the other night and it was very hard. Have spotted a few around the tank the last week or so. Usually on the live rock but this one on the substrate.

 

[Davy Jones]

Looks to me like a limpit. good hitch hiker basically a type of snail

 

[SAPPER]

Its just a limpet

 

[Crabs McJones]

Small round green dome shaped thing just above crab shell. I pried one off the other night and it was very hard. Have spotted a few around the tank the last week or so. Usually on the live rock but this one on the substrate.

Limpet possibly.

 

[jk_s124]

Thanks!