These types of crabs wear shells on their backs such as the hermit crab, nevertheless dogs shop called him or her “hairy crabs”

These types of crabs wear shells on their backs such as the hermit crab, nevertheless dogs shop called him or her “hairy crabs”

-“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

When the these types of crabs are aggressive I could obviously get him or her straight back on the shop and have some thing significantly more appropriate to have my 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 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.

You to definitely crab is much larger plus aggressive and you may was principal during this “interaction”. The smaller significantly more passive crab is just one We afterwards watched introducing lightweight larvae in the evening (I found myself radiant a torch with it). He has produced several moments already. I am unable to apparently come across an answer on when they dioecious or hermaphrodite in my books (I have books by the Fenner, Delbeek and Sprung, Tullock, ainsi que al). I am aware this is not of world shattering benefits, however, I became just curious. Thank you so much ahead! I believe We have an answer for your however it is based on California types (approximately pertains to tropical types too). This is basically the address I know gotten now of a part regarding exploit Dr. Robert Toonen Secretary Research Teacher, School off Hawaii on Manoa College or university off Ocean and you may World Technology and you may Technology, The fresh new Hawai’i Institute out of Marine Biology I am hoping this helps.

We have never increased any of the common tank kinds (such as bluish- or red-colored-legs), but You will find raised a number of the local California varieties

It will associate together with your conclusions: “There clearly was a lot of variability certainly more hermit crabs inside their mating behavior, but I shall just be sure to give you particular practical generalizations. At the least the brand new larvae are relatively simple to boost by comparison to many inverts. Having you to definitely exemption, most of the hermit crab variety that I’m familiar brood the larvae on the outside (but in the shell) up to they finish the nauplius levels (early stage larvae, like a baby brine shrimp), this era can differ ranging from on the step one and you will 1 year, depending on the species. The brand new lady after that release possibly zoea otherwise megalopae (simply appreciate terms for more-and-old larval degree) and this normally feast upon phyto- and you can zooplankton.

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