Lactoria diaphana 5/5/09 Hello, <Hi there> This is James Miller in Japan. I netted a round-belly cowfish yesterday and noticed your site did not have a photo of one. If you need one for your boxfish page, I can take one as your site has helped me out many times in the past. So much so that I purchased the CMA last month. Regards, James <Please do send this along when you can for posting, sharing... with credit to you. Bob Fenner> Re: Lactoria diaphana 5/5/09 Mr. Fenner, <Just Bob please James> Here are some snapshots I took a couple of minutes ago. The fish won't sit still, but there may be one shot you can use. If not, I can try tomorrow as my camera's battery needs charging. I have it in a QT with two volitans, a crown of thorns (harlequin shrimp food) and a pinecone fish that I netted yesterday. Regards, James <Hope they all are getting along! Thank you, BobF>

Anoplocapros ID
hello there,
<Cheers>
today I bought a boxfish from TMC here in the UK which they described as a southern boxfish (robustus) its about the size of a fingernail and allover yellow.
just wondering if any of you knowledgeable souls could take a guess as to whether it is a robustus or ????.
<Mmm, well, according to fishbase.org there are four valid species... We have these listed but pix of only A. lenticularis: http://www.wetwebmedia.com/boxfishes.htm.
There are some pictures (including robustus) in Axelrod, Hunziker and Burgess "Atlas of Aquarium Fishes" (marine). Bob Fenner>
regards and thanks   Graham  Hannan

Hovercraft Fish
I'm looking for information about my hovercraft fish.
<Never heard of a fish called that.  Is it a pufferfish?  I need to know what kind.  See if your fish looks like any of these & get back to me: http://home.earthlink.net/~snebluemoon/Picture%20Gallery.html>
Please could you send me any information you have as I can't find any.
Thank you.
<Pufferpunk>

Re: Hovercraft Fish
I couldn't find my fish on the link you sent me.
<That's because that link if for FW & BW puffers.  Your fish is SW.  WWM has loads of info on them if you search for it.  See: http://www.wetwebmedia.com/boxfishes.htm>
This is the Hovercraft fish I have.
I found this picture but I can't find any information.
It may be called a Hovercraft Boxfish, the stockist had it listed as just "Hovercraft Fish"
<I actually have a tattoo of your fish!>
Again, thank you for your time, I'd appreciate further help.
<You're welcome & good luck w/your very cool fish--PP>

Boxfish ID
Hi guys-  There is boxfish at LFS I have never seen before. Last night I spent an hour searching every site and index I could find, can't find it. It is a basic yellow boxfish but the spots look like three seed peanuts, two black ovals on the outside and one bright white inside. Hard to explain but very dramatic looking. Any links to this fish would be appreciated, I want to know the species, max size and any info on keeping in captivity. TIA
<Sounds like an intermediate/developmental stage of an Ostracion cubicus to me. Please see here on Fishbase: http://www.fishbase.org/Summary/SpeciesSummary.cfm?ID=6555&genusname=Ostracion&speciesname=cubicus
Click on the one image at top right... and look on the next page shown toward the bottom right. Bob Fenner>

Aging yellow boxfish question (1/5/04)
Hi Bob,
<Hi! Ananda here tonight....>
I've just purchased your Conscientious Marine Aquarist book and am looking into getting a yellow boxfish.
<A difficult fish to start with if you're a beginner....>
I noticed the image of the adult being much different than that of the juvenile I've visited in the store. Do the adults always fade in color and age as these drastic pictures indicate?
<I believe the amount of fading varies somewhat from fish to fish.>
After how many years of life does this usually occur? Any information or resources would be much appreciated... especially pictures.
<Your best bet is to ask the folks on the "Cowfish, Puffers, & More" Yahoo group: http://groups.yahoo.com/group/CowfishPuffers_andMore/ They have a number of people with cowfish.>  
Thanks so much,
Gina
<You're quite welcome. --Ananda>

Cowfish Size Questions
Hi thanks for the quick reply about the cow fish I was wondering how big it would grow as they have a really small one (about 1 inch) in the LFS but also a larger one (4 inches) just wanna know if it will grow huge or not.
thanks a lot
Andy
<Some cowfish species get quite large. Most of the ones available for aquarium use and their size data we have posted here: http://www.wetwebmedia.com/boxfishes.htm
Bob Fenner>

Cowfish/Boxfish
Let me first say, this is the most impressive website I have ever seen. 
<Very kind of you.> 
I have learned so much from reading, unfortunately, I managed to kill most of my fish before finding your site. Thankfully, I am learning. My question, I saw some cowfish at my LFS, some were green and some orange. I thought they were really cute. I was reading up on them, on your website of course, and I keep seeing the terms boxfish and cowfish. 
<Take a look here. http://www.wetwebmedia.com/boxfishes.htm. Boxfish and cowfish are both in the same family.> 
I'm not really sure of the difference in the two. Do both basically release the toxins that will kill the fish in my tank if under stress? 
<They both have the same toxins.> 
I've had enough deaths over the past year and finally have a happy community. My tank is a 55G, with a firefish, flame angel, royal Gramma, and a Singapore angel. 
<The biggest problem you are going to have is that the fish are going to outgrow your 55 tank. You would be best perhaps in passing on both of them.>

Cowfish of a different color, not Oz
Hi,
I recently bought a whitish/yellow boxfish with black spots on it and I
have noticed that it is starting to turn dark gray. Should I be worried?
Thanks, Derek
>> 
This is probably an Ostracion cubicus, and they do grow into a gray phase. Take a look at a large marine fish reference work, and you'll understand if what you're looking at is "natural". Bob Fenner

Ostracion cubicus
Hey Bob
I just inherited a couple of fish with a used tank I purchased. One is a
cute, tiny little boxfish. I think he might be a Ostracion cubicus but am
not sure. He does not quite match the photos of Ostracion cubicus on the
Net or in your book- (the Conscientious Marine Aquarist) however he is
yellow with little black spots and is about the size of a single dice (ya'
know, the thing you shoot craps with). The major difference between my fish
and the photos of Ostracion Cubicus I've found is: my little guy has an
almost invisible, nonexistent tail. If you peer super close you can see a
tiny, clear fin moving madly back and forth. In the photos of Ostracion
Cubicus they all seem to have a noticeable tail the same yellow/black
spotted color as the body. 
My question is: could this just be a very young Ostracion Cubicus that has
yet to grow a bigger tail or is there another boxfish species that is also
yellow with black spots? The guy I bought the aquarium and fish from
called it a Boston bean which I believe is a somewhat generic name for baby
boxfish and puffer species. 
Thanks, Randy
>>
Hmm, could be a juvenile Ostracion cubicus... of possibly Lactophrys bicaudalis (the "official" "Boston Bean"), caught out of the Atlantic... Take a look at any fish reference work detailing the Caribbean... Is this your fish? When small they're orange to yellow with smaller dark dots than the "Cubicus, aka Yellow Boxfish"... Bob Fenner

Cowfish
I am very new to the salt water wonderland. My very first purchase has been
a cowfish. It is only a baby, he looks just like the one on your web site.
My questions is: I bought another cowfish but this one is so different
looking than my first one. The second one is almost white with some purple
and the horns are much longer and a lot more sharper looking (very pointy)
They seem to be getting along fine after 24hours. Also my first cowfish has
such a great personality. Everyone who comes to my home just loves him. Do
you know where I can find out more about the cowfish and the different
species? 
>>
Hmm, well these are probably both the species, Lactoria cornuta... though there are other Cowfishes that look similar. Perhaps the best way to learn about these animals is to use your computer search engines (like Ask.com) and put in questions like "What do Puffers eat?". Boxfishes are puffers that have hard outer bodies... and don't "puff up"... And follow wherever the search engines lead you. There are no "all puffer" books that include much husbandry information as far as I know.
Bob Fenner

Boxfish questions
Bob,
I have had a blue boxfish for about 6 months. He's healthy, I think.
When I received him he had the normal blue sides brown top and some
yellow on head,
eyes and tail. The yellow has completely disappeared. Wondering if he's
changing to a
female, or could there be a nutritional problem. 
<Much more likely the latter>
He doesn't get much
greens, mainly
protein. There's a solorensis in with him , not sure the gender.
<They're easily sexable... http://www.fishbase.org/Photos/ThumbnailsSummary.cfm?ID=6577>
I wouldn't think it would
matter. Anything I can change to keep his color or get it back?
<Better nutrition, water quality>
Also, how do you distinguish between a female cyanurus and a cubicus. Do
they have
similar markings? 
<See fishbase.org>
Have not seen too many pics on the net of the cyanurus.
Thanks
Darren
<Be chatting. Bob Fenner>