Found this on one of my new live rocks. Can someone please tell me what it is? And Good or bad?
TIA
TIA
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It is still there but not a big as it was. I think it may be dying.Almost certainly a tunicate. A good guy in my books, quite hard to sustain however. Do you still have it now?
No need to.That’s a shame but not really surprising. They filter a lot of water feeding on I’m not exactly sure what to be honest. Tunicates are such fascinating creatures. Are you adding any phytoplankton and/or other small particulate feeds for filter feeders?
Sea squirt is filter feeder. It absorbs water with edible particles through the siphon and separates plankton and algae from the water in the pharynx and lower parts of digestive system. |
Some species of sea squirts use tentacle-like structures to catch jellyfish and small fish. |
Sea squirts use second siphon for the elimination of waste products. |
No need to what? Try and feed it?No need to.
Sea squirt is filter feeder. It absorbs water with edible particles through the siphon and separates plankton and algae from the water in the pharynx and lower parts of digestive system. Some species of sea squirts use tentacle-like structures to catch jellyfish and small fish. Sea squirts use second siphon for the elimination of waste products.
yes, a crab that was a bad guy, tiny pencil urchin the size of a pencil eraser. Urchin is still doing great and growing, a few tiny bristle stars.Have you found any other cool hitchhikers on the rock?
There’s always a dodgy crab. Pencil urchins are cool but can munch on corals so one to keep your eye on for the future.yes, a crab that was a bad guy, tiny pencil urchin the size of a pencil eraser. Urchin is still doing great and growing, a few tiny bristle stars.
It's a FOWLR tank so no worries about the urchin.There’s always a dodgy crab. Pencil urchins are cool but can munch on corals so one to keep your eye on for the future.