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FAQs about Non-Vertebrate Animal Identification 65

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Related FAQs: Non-Vert IDs 1, Non-Vert IDs 2, Non-Vert IDs 3, Non-Vert IDs 4, Non-Vert IDs 5, Non-Vert IDs 6, Non-Vert IDs 7, Non-Vert IDs 8, Non-Vert IDs 9, Non-Vert IDs 10, Non-Vert IDs 11, Non-Vert IDs 12, Non-Vert IDs 13, Non-Vert IDs 14, Non-Vert IDs 15, Non-Vert IDs 16, Non-Vert IDs 17, Non-Vert IDs 18, Non-Vert. ID 19, Non-Vert. ID 20, Non-Vert. ID 21, Non-Vert. ID 22, Non-Vert. ID 23, Non-Vert. ID 25, Non-Vert ID 26, Non-Vert ID 27, Non-Vert ID 28, Non-Vert ID 29, Non-Vert ID 30, Non-Vert ID 31, Non-Vert ID 32, Non-Vert 33, Non-Vert ID 34 Non-Vert ID 35, Non-Vert ID 36, Non-Vert ID 37, Non-Vert ID 38, Non-Vert ID 39, Non-Vert ID 40, Non-Vert ID 41, Non-Vert ID 42, Non-Vert ID 43, Non-Vert ID 44, Non-Vert ID 45, Non-Vert ID 46, Non-Vert ID 47, Non-Vert ID 48, Non-Vert ID 49, Non-Vert ID 50, Non-Vert ID 51, Non-Vert ID 52, Non-Vert ID 53, Non-Vert ID 54, Non-Vert ID 55, Non-Vert ID 56, Non-Vert ID 57, Non-Vert ID 58, Non-Vert ID 59, Non-Vert ID 60, Non-Vert ID 61, Non-Vert ID 62, Non-Vert ID 63, Non-Vert ID 64, & Marine Invertebrates, Marine Invert.s 2, Marine Invert.s 3, & FAQs about: Marine Invertebrate Behavior, Marine Invertebrate Compatibility, Marine Invertebrate Selection, Marine Invertebrate Systems, Feeding Reef Invertebrates, Marine Invertebrate Disease, Marine Invertebrate Reproduction, & & LR Life Identification, LR Hitchhiker ID 1, Anemone Identification, Aiptasia Identification, Aiptasia ID 2, Worm Identification, Tubeworm ID, Polychaete Identification, Snail Identification, Marine Crab Identification, Marine Invert.s 1, Marine Invert.s 2, Marine Plankton,


Critter ID       10/25/27
Hi there, I've got a funny little dude on one of my corals. I've asked every reefing group I can find and no one has an idea. It started off between these two heads of hammer coral and looked like a Chiton at first--it's a series of armored plates. Then it sort of curved as you can see here in the photo and it's growing fast. There are three of them now.
It is very, very hard--harder than the coral stalk and absolutely nothing budges it, even trying to slide a razor blade under the edge hasn't been successful. The picture below shows it just opened its 'mouth' end which is usually shut tight. Any ideas what it could be? I'd hate to kill it if it's a reef safe critter. Thank you!!!
<Mmm; can't quite make out in your pix, but would have guessed at first glance that these were Chitons as you mention, and with the clue that they can't be removed with a razor blade either limpets of some sort or, my final guess (for now) that these are a species of calcareous tube-building worm. I would leave them here.
Thank you for sharing. Bob Fenner>

Snails?     8/23/17
Hi,
<Howsit Ryan?>
My local aquarium shop suggested that I submit a question about some critters in my tank. The attached images show these "sand-sized" organisms (about 1mm in diameter) blooming in my tank.
<Neato! These are Foraminiferans! Sign of a healthy system, lack of predators>
They have been there for months and seem benign, or maybe even helpful (eating algae?), though they do obstruct the view of the tank some. There are thousands of them in the sand bed, on the rocks, and on the glass.
They move very slowly...as indicated by some time-lapse video. The close-up photos were taken with a macro lens.
Can you provide any insight? Are they helpful? Harmful? Should I be concerned?
<No concern; are helpful... Enjoy them while you can, as changes in your system will result in their crashing population wise... other life becoming more dominant in time>
Thanks!
Ryan
<Thank you for sharing. There's a bunch on the Net (even WWM) re: https://en.wikipedia.org/wiki/Foraminifera
Bob Fenner>

Re: Snails?     8/23/17
Excellent. Thanks for the info Bob!
<Welcome Ryan. BobF>

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