-«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 menchats, 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

If the these crabs was competitive I can definitely bring her or him back into the shop and also have something much more compatible for 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 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.

One crab is significantly big and aggressive and you can is dominant with this «interaction». Small a lot more couch potato crab is but one We later on saw opening smaller larvae in the evening (I found myself radiant a flashlight inside it). He’s produced one or two moments already. I can’t appear to select an answer regarding the if they’re dioecious or hermaphrodite within my courses (We have books because of the Fenner, Delbeek and Sprung, Tullock, et al). I understand this isn’t regarding world shattering strengths, however, I was just interested. Thank-you ahead of time! In my opinion I’ve an account your however it is based on Ca variety (approximately pertains to exotic variety also). This is basically the respond to I personally gotten now away from a part regarding exploit Dr. Robert Toonen Secretary Search Professor, College or university of Hawaii at the Manoa University from Sea and you will Environment Technology and you can Technology, Brand new Hawai’i Institute regarding Marine Biology I really hope it will help.

You will find never raised all preferred tank variety (such as bluish- otherwise red-legs), however, You will find elevated a number of the local California varieties

It will correlate along with your findings: «There is quite a bit of variability among different hermit crabs in their mating choices, however, I’ll you will need to leave you specific sensible generalizations. At the very least the brand new larvae try relatively simple to improve in contrast to the majority inverts. Having you to definitely different, the hermit crab types in which I’m common brood its larvae on the exterior (however, for the shell) up until they complete the nauplius grade (early stage larvae, similar to an infant brine shrimp), this period may vary anywhere between in the 1 and you may 1 year, with regards to the species. The new people up coming launch possibly zoea otherwise megalopae (just like conditions for more-and-earlier larval level) and this generally prey on phyto- and you will zooplankton.