-“Hairy” hermit crabs- I just purchased two medium sized (approx 3″ shells) “hairy crabs” from my favorite fish store. I have looked at everything I can find on the internet pertaining to these crabs to no avail. Since I rely on info I obtain from the internet to learn about new purchases I am stumped by the lack of info on my crabs. I placed one crab in my 55g reef tank with LR and one coral. It also has a large yellow tang, 7 assorted damsels, a brittle star and a goby. Is the crab a danger to any of these already established animals. The other crab went into a 75g tank with a blue tang (approx 8″) and a carpet anemone. I am just stocking this tank as it’s only 3 months old. Also since they seem to be of the hermit family should I keep several larger shells available for them to use as homes. Thanks for all the info your website brings to those of us who are less than marine biologists. Janie

In the event the such crabs is actually aggressive I am able to without a doubt just take him or her right back to your store and also have something more compatible to have my personal tanks

Marine Hermit crab reproduction methods – 7/ Hello WWM Crew, I’m a long time reader and fan of the site. Glad to hear> This is my first time writing (because the site is so darn comprehensive and all my other questions have been answered before! I wat is jackd have 2 scarlet reef hermits in my 10g Nano and just want to know if they are hermaphrodites or distinctly male or female. My guess is the former, but their behavior makes me wonder. I think I have seen them mating. They both went down into a big, secluded hole in the live rock and faced each other and sort of interlocked legs and came partially out of their shells so the soft parts were exposed.

That crab is much big and competitive and you can are principal during this “interaction”. The smaller a great deal more inactive crab is the one I afterwards noticed initiating lightweight larvae in the evening (I happened to be glowing a torch with it). He has spawned one or two minutes currently. I can not frequently come across a response regarding the if they’re dioecious or hermaphrodite in my courses (I’ve guides by the Fenner, Delbeek and you may Sprung, Tullock, ainsi que al). I am aware this is simply not away from planet smashing characteristics, however, I found myself merely interested. Thank you so much ahead! I believe I have an answer for your but it’s considering California variety (roughly pertains to tropical species too). This is the answer Personally gotten now regarding a member from mine Dr. Robert Toonen Secretary Lookup Teacher, University out of Hawaii from the Manoa School off Ocean and you may Earth Science and you can Technology, The new Hawai’i Institute out of Aquatic Biology I am hoping this will help to.

I have never raised any of the well-known aquarium kinds (such as for example blue- otherwise red-colored-legs), however, I have elevated a number of the regional California types

It will associate together with your findings: “There was quite a bit of variability among different hermit crabs in their mating decisions, but I’ll attempt to leave you specific reasonable generalizations. At least the larvae was relatively simple to boost in comparison to most inverts. Which have one to exemption, all hermit crab species with which I’m familiar brood their larvae externally (but within the shell) up until they complete the nauplius degree (initial phase larvae, exactly like an infant brine shrimp), this era may vary between on step 1 and 12 months, according to varieties. The newest lady following launch both zoea or megalopae (only enjoy terminology to get more-and-more mature larval levels) and that usually feast upon phyto- and zooplankton.