These little guys have recently popped up in an area of my tank. They seem to like low light -to-dark and glass or plastic vertical surfaces. The largest of them is barely 1 cm from its base to the tip of its tentacles.
They're so small I can't make out too many details about their anatomy. I apologize for the pics -- I don't have a macro lens.
My first thought was that they're barnacles. I don't see the scutum/ tergum, but maybe they're just too small.
I wondered if they might be a tiny sessile sea cucumber, but the tentacles don't look feathery enough, and I can't see anything that I could clearly identify as feet.
They seem to be fairly rigid, though I'm not sure if that base is a shell or not. When disturbed (as in poke, poke with a stick... gently) they don't contract or retract their tentacles(?) / cirri (?).
The only filter feeders I have in the tank that have tentacles are zoas (no resemblance) and Clavularia and a lone Aiptasia (tolerated because my sexy shrimp seem rather fond of it).
If they are barnacles, are they likely to overrun a tank? Is manual removal the best solution?
They're so small I can't make out too many details about their anatomy. I apologize for the pics -- I don't have a macro lens.
My first thought was that they're barnacles. I don't see the scutum/ tergum, but maybe they're just too small.
I wondered if they might be a tiny sessile sea cucumber, but the tentacles don't look feathery enough, and I can't see anything that I could clearly identify as feet.
They seem to be fairly rigid, though I'm not sure if that base is a shell or not. When disturbed (as in poke, poke with a stick... gently) they don't contract or retract their tentacles(?) / cirri (?).
The only filter feeders I have in the tank that have tentacles are zoas (no resemblance) and Clavularia and a lone Aiptasia (tolerated because my sexy shrimp seem rather fond of it).
If they are barnacles, are they likely to overrun a tank? Is manual removal the best solution?
