stomatella or flatworm

[FrozenSurfer]

This has me pretty puzzled. I've seen a lot of flatworms, but never ones with shells. So far I've only seen them in the fuge, so I have shut that down for the time being... just in case.

Here are some photos.... sorrry about the quality.

and here's another

Any ideas?? I haven't slept in a couple days, so I might just be seeing things...

 

[FrozenSurfer]

I pulled one out of the water...

and another

 

[pagojoe]

They look to be bubble shells, maybe Haminoea antillarum? They should be algae eaters, and no problem in your tank. Compare to these pics, and see if you agree:

http://www.seaslugforum.net/factsheet.cfm?base=hamianti

Cheers,



Don

 

[FrozenSurfer]

Wow, nice find Don! Yeah, that looks just like them! Thanks so much for looking that up!

 

[Joe Pusdesris]

I have those in my tanks. I love those things. I always assumed they were a species of limpet because they don't have antenna, but that link is an exact match, so I will go with that instead. I suspect they survive primarily on diatoms because they boom when a tank is cycling then slowly decline until you only see one every few weeks.