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  1. L

    worm id help?

    I meant to add that it sounds like there's probably more than one predator in your tank. What you've listed is too much damage for one worm, even one very very hungry one. More bad news is that many syllids alternate sexual & asexual reproduction. Here's hoping the one you saw belongs to the...
  2. L

    worm id help?

    Usually these syllids have one very small tooth, sometimes more, but always so small that they can't penetrate your skin. Typical feeding behavior for syllids is to puncture the outer skin & suck out a bit of the coelomic fluid & then move on without doing any real damage. A few tend to stay...
  3. L

    ID Help, GOT PICTURE

    Okay, PM sent. Brain damage, huh? You and me both! Hopefully one of us will manage to remember. :D
  4. L

    ID Help, GOT PICTURE

    5% Formalin is the best preservative for soft bodied animals but many researchers use 70% ethyl alcohol. I mentioned isopropyl & vodka because they're acceptable & easy to get for non-researchers. Sponges feed by siphoning in the water through small openings, filtering out the particulates &...
  5. L

    ID Help, GOT PICTURE

    New water means fresh oxygen, waste removal, and possibly food so any type of critter would probably perk up. Did you try the milk trick Ron suggested? If it worked you really don't need me to dissect the thing. Why don't you add the dropping & tissue to the alcohol along with the beast...
  6. L

    ID Help, GOT PICTURE

    Yes, please wait. The 5 to 1 ratio is just to ensure there's enough alcohol for good preservation, more is not a problem. Since it will be sitting in alcohol for a couple of weeks it should be well preserved and you can drain most of the fluid off before sending to keep the package small.
  7. L

    ID Help, GOT PICTURE

    Thanks. Yes and no. From what jnarowe's said there's not much to be learned from watching it. I'll probably have to dissect it to figure out what it is. As it sounds like it's in distress if it's not preserved soon there won't be enough internal structure left to examine.
  8. L

    ID Help, GOT PICTURE

    Hi guys -- sorry for not responding earlier. I don't have much of a clue either. Some sponges can move either by contraction or by re-organization of their body tissue, extending in one direction as they contract in the other http://www.int-res.com/abstracts/meps/v185/p239-255/...
  9. L

    Anemone hitch-hiker

    They're adaptable feeders and will eat a variety of food. wetwebmedia has a lot of good information on shrimp so check over there & see what they say about supplemental feeding.
  10. L

    Anemone hitch-hiker

    And I always appreciate it when people post interesting topics to enliven my day! :D P. yucatanicus (I used the wrong ending before) is indeed a cleaner. Living on anemones gives them protection from predators while the anemone itself serves as a conspicuous cleaning station. When ready for...
  11. L

    Anemone hitch-hiker

    Periclimenes yucatanensis is the one with 4 big spots on the back. P. pedersoni has small blue dots.
  12. L

    *sigh* Shrimp goby and mystery red fish ID

    The first one is very predatory. It's a red spotted sand perch from the Indo Pacific. More information here: http://filaman.ifm-geomar.de/Summary/SpeciesSummary.php?id=7872
  13. L

    Red Crab species ID

    Brie - can you get someone at work to take a photo of your actual crabs?
  14. L

    which seaslug is that?

    Thanks, but it's not me you're trusting, it's Angel Valdes, the nudibranch specialist at my museum. In the past he's looked at several images of this guy for me and always says it's Phestilla minor or something close. It's true that P. minor doesn't look like the other Phestilla species.
  15. L

    I want to learn more about Nudibraches.

    :) Do some searches on SSF for aquarium, tank, reef, Montipora, Porites, etc. That should turn up some of the species that regularly appear in tanks as hitchhikers/predators on corals, algae, etc.
  16. L

    I want to learn more about Nudibraches.

    That's Tritoniopsis elegans. If you go to the species page on the Sea Slug Forum you'll find quite a few posts from reefers who found it in their tanks. http://www.seaslugforum.net/factsheet.cfm?base=triteleg The Sea Slug Forum is the absolute best site for learning for nudibranchs & other...
  17. L

    which seaslug is that?

    It appears to be a Phestilla species very similar to Phestilla minor. That one is supposed to eat only Porites but maybe it likes Montipora too. http://www.seaslugforum.net/factsheet.cfm?base=phesmino
  18. L

    ID this crab

    Teddy bear, maybe genus Polydectus or Pilumnus - it's hard to tell when it's out of the water & the hairs don't look right. Some reef sites say they're peaceful & non-offensive in tanks while others say they may become a nuisance as they get larger.
  19. L

    What the heck is this worm?

    Both sipuncs & echs come in a variety of sizes & body textures. The Guana sipunc is unusually large - most are much much smaller. Setae are normally retracted on living echuroids & hard to see; if your animal is an echuroid it's probably not the body but rather the proboscis which gathers...
  20. L

    What the heck is this worm?

    There's no sign of segmentation so it's not a polychaete. Without seeing the head my three choices would be sipunc (not all of them live in rock), echuroid, or enteropneust.
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