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 What kind of Bristlenose?

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Pleco James
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PostSubject: What kind of Bristlenose?   Thu Mar 10, 2011 7:52 am

Hi, this is a picture of a female that i got from a freind a couple weeks ago, as you can see the colouration is weird, can anyone explain why? or is it a colour morph of a BN?



Comparison with Smaller male



If anyone needs more photos or you want me to get a more detailed one, just ask Very Happy

Thanks in advance

James
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jim.and
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PostSubject: Re: What kind of Bristlenose?   Thu Mar 10, 2011 10:15 am

I would say that it is Ancistrus sp. rather than the Common Bristlenose...cf. Cirrhosus. Bn's can display stress markings that look similar but i'd still opt for it not being a common.

Your male definitely looks like Cirrhosus with the black spot at the base of the first dorsal fin ray.

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Doug
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PostSubject: Re: What kind of Bristlenose?   Thu Mar 10, 2011 11:02 am

i agree its not a common. What it is will be very hard to tell, we will def need more pics. some from above, some from below.


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Pleco James
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PostSubject: Re: What kind of Bristlenose?   Thu Mar 10, 2011 3:57 pm

Thanks, i'll try and get some more pictures when i've done my homework, just came home from school lol!
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Amber
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PostSubject: Re: What kind of Bristlenose?   Thu Mar 10, 2011 6:17 pm

I agree with what all the others have said, and can't offer any insights beyond that, but I would offer some further questions.
How old is that female? A. cf cirrhosus females rarely have bristles and the ones that do are larger older females, not that I believe this to be a cf cirrhosus. So another question to those who are more experienced with ID, is what species commonly have bristled females? Do you know if she was wild caught? What further info can your friend give you about her, if anything?
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Pleco James
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PostSubject: Re: What kind of Bristlenose?   Thu Mar 10, 2011 7:43 pm

I am not sure how old she is or whether she is wild caught, but she is about 3.5 inches long so that may be a rough indicator to her age.


Here is another photo of the female, i will get some more from top and below but this is all i can get at the moment

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wolverine
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PostSubject: identifying can be hard on catfish   Fri Mar 11, 2011 3:52 am

The top picture looks like a male to me, I could be wrong but though you think she is female..

never quite seen so many bristles on a female before, though there may be rare exceptions...

identifying and sexing can be extremely difficult when fish are so young and small, I had a small fish that looked the same colour as yours and it turned out to be ancistrus teminckii, though its colours morphed slightly as it got bigger and is now about 4inches. though she still as no bristles...

good luck getting more photo's..

lj
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wolverine
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PostSubject: Re: What kind of Bristlenose?   Fri Mar 11, 2011 3:53 am

by the way nice gibbicep in the background Smile
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Pleco James
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PostSubject: Re: What kind of Bristlenose?   Fri Mar 11, 2011 8:08 am

OK, thanks everyone, i manged to get another picture of the BN, but this time from underneath, it looks quite fat, could this mean that it female and possibly gravid?
i am quite sure that it is female she is about twice the size of the male and the bristles on the male are like a 'tree growing out of his face' as my sister so kindly puts it lol!
You can see the difference in the first 2 pictures



Sorry it is not very detailed, i only had a couple of seconds to take the picture


Hope this helps

James
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Pleco James
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PostSubject: Re: What kind of Bristlenose?   Fri Mar 11, 2011 9:14 pm

Got a better picture from above, hope this helps and try to ignore the poop lol!
Another question i'm afraid, there is a normal coloured brown patch on her right gill, does this mean that she is getting colouration? or is it just a fluke.





Thanks everyone

James
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ltaylor88
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PostSubject: Re: What kind of Bristlenose?   Sat Mar 12, 2011 1:48 pm

Looks like a wild cought sub species to me. there are so many variation of what people would call a common bistlenose. for example i have seen a pair of breeding commons that were 9" . where most commons only reach 3-6 inches
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Pleco James
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PostSubject: Re: What kind of Bristlenose?   Sat Mar 12, 2011 10:35 pm

OK, so this is probably never going to be solved, the question of what BN is this lol!
But anyway, would this female still breed with a normale male, or do you think i should keep her seperate?
Kind of unfortunate really when i went to collect her i though it was going to be a nice common female, but instead it turned out twice the size of the male and a bizarre colour...
I saw a lovely male and female pair of BNs at my LFS today, do you think i should buy them?

Thanks

James
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Doug
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PostSubject: Re: What kind of Bristlenose?   Sun Mar 13, 2011 12:38 am

yes, no...who knows.

Do you have the tank size or extra tank for breeding? do you have the time to breed them? do you think that you will be able to give all the fry the care they need to have?

if you can answer all of the above questions with a yes then feel free to get into the breeding game. if you think that it might be an issue then i would suggest waiting for a while. Sorry if thats a bit blunt but im yet to have my moring coffee Laughing

the truth is that keeping bristlenose and breeding them are two different things and the jump from one to the other is a large one. It must be a considered thing to get into breeding.

in regards to the question of the other female. As she is a different species she wont interbreed.

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Curby
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PostSubject: Re: What kind of Bristlenose?   Sun Mar 13, 2011 9:13 am

I once had a pair of LDA72 that looked just like this one....they have a diff pattern on there body instead of spots like the common does..

heres a female i had...





cheers......

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Pleco James
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PostSubject: Re: What kind of Bristlenose?   Sun Mar 13, 2011 9:36 am

Thanks everyone Very Happy you are all a great help Smile
But is it only commons that have the black spot at the base of their dorsal fn? because this female seems to have that spot


Thanks Again Very Happy Very Happy

James
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jim.and
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PostSubject: Re: What kind of Bristlenose?   Sun Mar 13, 2011 2:46 pm

Pleco James wrote:
But is it only commons that have the black spot at the base of their dorsal fin? because this female seems to have that spot

No it's not unique to A. Cirrhosus there are others but A. Temmincki which also gets classed as the common does not.
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Pleco James
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PostSubject: Re: What kind of Bristlenose?   Sun Mar 13, 2011 3:20 pm

Ah OK, thanks Jim, so my BN is more likely to be A. Temmincki?

James
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jim.and
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PostSubject: Re: What kind of Bristlenose?   Sun Mar 13, 2011 5:37 pm

Your male is Ancistrus cf. Cirrhosus your female you will probably never no exactly what it is but it's not one of the common variaties. It's a shame because your female looks like she's ready for breeding but with her being different to your male then unlilely to happen. As Doug has pointed out this may not be a bad thing, you will have more time to prepare if you really do want to try breeding BN's

I have a small group of Ancistrus from Columbia that I've not been able to I.D. for sure but at least it's starting to look like I have males and females.
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Pleco James
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PostSubject: Re: What kind of Bristlenose?   Sun Mar 13, 2011 11:40 pm

I suppose it does not matter about the female that much, i have another which is a definate common the same as my male, they are too small to breed at the moment but this will give me more time to prepare as you said, i just need to find somewhere to put the breeding tank, and need to persuade my mum to see the benefits of breeding BNs lol!


Thanks again everyone, always a help

James
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