Post by emberfusion on Apr 21, 2013 17:23:50 GMT -5
It's also important for everyone to realize that, unfortunately, there is not a lot of scientific research being done on hermit crabs - in any capacity.
The information that is endorsed and repeated here is information that we have learned from some of the most experienced hermit crab keepers; sometimes from our own trials and errors; and sometimes it comes from common sense ( what we see crabs consistently doing in the wild, a variety of food = a variety of nutrients, etc.).
While many of us yearn for scientific proof behind every detail of why our habitats have to be set up a certain way, the fact remains that we are not likely to get that proof any time soon (if at all). So, for now, we have to be open to learning and trusting the experience of those who have been keeping longer than we have.
Sach does a fantastic job of doing that for us. As long as I have been a member here and as long as I have known her, I can honestly say that if Sach tells you something is safe, unsafe, or whatever else she has to say, she has done her research. She reaches out to people who have had more success than others, she reaches out to people who just have years more than she does with hermit crabs, and if she doesn't already know the answer, she will do whatever she can to find it.
If you aren't willing to accept the lack of scientific evidence and trust in repeated success, you probably shouldn't be keeping a creature that isn't being researched - hermit crab or otherwise. (PS: This is a general statement and not directed at any individual.)
I know this is a bit late, but Sach, do you have solid evidence that is has to be 5:1 sand:ee ratio???
Sach did say our c.variabilis are an exception. Nat (very smart lady) told me on facebook that the correct mix is 8:1 sand to coir, they can live very happily and she's even bred them on this substrate, so I think she knows what she's advising.
4/1 - Stained crab is a boy! 1/5 - Got a 'sick crab' pack from Nat. I'm very impressed, it's a large pack so will feed all crabs! 30/6 - My new hygros have arrived! The big tank is 29degrees/81humidity. The little tank has the same temperature but 86humidity.
Post by Sach-Crabministrator on Sept 2, 2014 10:46:29 GMT -5
Also if you read the sub study linked in the original post (it is long and full of scientific stuff but the tables sum it up) it's done on c. rugosus (Ruggies); the most common species and they actually have even less organic material in the wild than a 5:1 ratio (probably actually closer to you guys' 8:1). The 5:1 makes an even ratio that is easy for new crabbers to use and seems to be the most effective (for species other than Aussies) over the long term. I always tell people to think of the beach; mostly sand with a small bit of organic material. Does it need to be absolutely perfectly 5:1? Probably not but again it makes an easy-to-do mix for people to start with (my tanks all have lots of added leaf litter, castings etc but started at 5:1 except my Aussie tank that is now an E tank with 8:1 plus added oyster shell powder).
≈19 clypeatus, 4 perlatus & 8 compressus in 4 tanks
I'd like to also add that Tammy & Kirk at HCP have not only been crabbing for more than 15 years, but are now successfully breeding hermit crabs in captivity; something only they and the person who taught them how (Bob, of ELHC) have been able to do well enough that they actually have years-old babies. Bob was my first teacher when it came to HC. He is the only American granted permission to export c.variabilis (Aussie crabs) out of Australia by their government, is a co-discoverer of new species & sub-species, like the sunset violas & brevimanus roseus, as well as discovering & identifying cross-breeds like the beautiful "brunberries" (bruneus/purpureus cross) and the violent & aggressive "Indocokes" (coconut crab/Indo cross).
I have also been educated by and am in current contact with Felix J. Wang. He is not only a resource for places like Tony Coenobita, but the other co-discoverer of the sunset violas, pink Indos & pseudorugosus. He is also the reason why coenobita purpureus are called "blueberries"!This is someone I talk to and learn from ALL THE TIME.
Hmm... There are worldwide no officially documents about other captive bred land hermit crabs. Only Nat's and mine. Do you have any photos or documentations?
And sorry to say, it is a pain in my neck to read about "sunset" LHC and stuff. There are no officially documents about sub species! Even new species are not listed. Nor cross breedings. In my opinion it is not helpful to name color varies. When only a few hermit fans do know the common species names oft their crabs. To identify species is hard, I know. But to name color varies are not helpful at all... Because color is almost the last point for identification a species.
Another thing: Well, in Germany we have a little bit other experience with substrate. But that' s nothing I want to discuss. In my opinion an important thing that I always miss in threads about substrate: numbers of hermit crabs. The soil is important, but imho most of the keepers have too many crabs in too small tanks. Often the reason for losses. And the transport stress (PPS)
Post by Sach-Crabministrator on Sept 4, 2014 9:50:26 GMT -5
I agree with you about the lack of documentation Curlz. At the time I said that, I believed them that they were breeding but I have not seen any documentation so I am not sure now.
I also agree with you about color variations though if the same species does have color variations when found in different areas it does make them "different" even if the difference is only in appearance (like the black c. perlatus, for example).
I know that your view on substrate is different than ours but also that the way you make yours isn't as "simple" as just sand separated from EE the way people do here also (since you add in other ingredients to make it healthier). As I have said before, a 5:1 ratio for most species is a good number to mimic nature and make it easy for beginners so that's one reason why we endorse it.
We do try to stress not over-crowding it just wasn't addressed here since the point was merely that we have reasons for giving the advice we do.
≈19 clypeatus, 4 perlatus & 8 compressus in 4 tanks
kitty: Not much activity in my tank. One morning I got up and it looked like a tornado went through it. Water bowls tumbled, food dishes upside down. Fixed it all up and have been waiting eversince. ! Nothing. DARN !!
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Curlz: ... anyone flying to Germany?? With compessus or variabilis in baggage?
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