Sexing GBRs? - Tropical Fish Keeping - Aquarium fish care and resources
 
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post #1 of 6 Old 05-20-2012, 06:04 PM Thread Starter
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Question Sexing GBRs?

So I finished off my South American 40 gal today with a pair of GBRs. The guy at the fish store told me that one was male and one was female, but I just wanted to post some pics on here and make sure.





Which one is male and which is female?




Something smells fishy


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post #2 of 6 Old 05-20-2012, 09:20 PM
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Quote:
Originally Posted by InsaneIchthyology View Post
So I finished off my South American 40 gal today with a pair of GBRs. The guy at the fish store told me that one was male and one was female, but I just wanted to post some pics on here and make sure.





Which one is male and which is female?
With the pictures, it's hard to tell. I think the top pic is a female. I can't tell for sure if the bottom pic is a male. Hopefully, when they get more comfortable they'll show more color. The black spot in the male has no color coming through it, and in the female black will be somewhat translucent and have blue "under" it. I could always tell me male and female apart. But I can't think now, of other differences. In the profiles, I think it gives some helpful details.

Gwen

Just because animals can't talk, does not mean they should not be heard
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post #3 of 6 Old 05-22-2012, 02:43 PM
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Look for a pink belly on the female. If they're young it will be hard to distinguish them.

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post #4 of 6 Old 05-23-2012, 04:58 PM
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Going of nothing other than the caudal fin shape I would say the top is female and the bottom is male. I would still watch their behavior. If the bottom one is male he will make it known through his behavior.
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post #5 of 6 Old 05-24-2012, 06:35 AM
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They are a little young to tell for sure.

10g Fry / Hospital / QT tank (as needed)

75g Saltwater Reef, Ocellaris Clownfish, Lyretail Antias (baby), Lemon damsel, Longtail Fairy Wrasse, purple dottyback, snails, crabs and a few LPS corals.

220g Still sitting empty (come on Lottery I need the numbers to come up!)
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post #6 of 6 Old 05-24-2012, 11:17 AM
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Yes. Observe the way they interact, once they are settled. The fish knows what it is and they will act accordingly toward each other.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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