Do I have a male or female Jack Dempsey? - Tropical Fish Keeping - Aquarium fish care and resources

 
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post #1 of 7 Old 06-30-2012, 09:34 AM Thread Starter
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Do I have a male or female Jack Dempsey?

Hey to all,

I just recently purchased another Jack Dempsey for my tank, the girl at the store told me it is a male but I'm not sure I'm convinced. Could someone please help me identify the lighter one in the pictures below.

After looking at pictures of my first JD when he was brought home, he was a lot lighter than he is now and didn't change color all that much, if at all. Now his color drastically gets darker when he is feeding or gets excited, so just based on that I think that because the new one is still very new he will remain a light color until he gets used to the tank...is that right? Ugh I don't know how to tell the difference so if someone could help me that would be AWESOME!

Thanks in advance!

IMG_2260.jpg
IMG_2265.jpg
This is the original JD..."Jack" (yeah I know I'm not very creative)

IMG_2280.jpg
IMG_2281.jpg
This is both "Jack" and "Boris". I want to know if they are both males or one male and one female.
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post #2 of 7 Old 06-30-2012, 09:41 AM Thread Starter
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Oh by the way, I know that there are a lot of threads on "Is my JD a male or female?" Sorry for adding to that long long list, however every fish is different so I just want to make sure that I'm not just comparing my fish to someone else's and that I might be wrong.
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post #3 of 7 Old 06-30-2012, 09:52 AM
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Can't tell the size and can't really see the fins in your photos. The dorsal and anal fins should be longer and pointier than a female's... reaching well back in the tail fin area. Let's wait for the cichlid experts to wade in here. My knowledge is pretty anecdotal.

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post #4 of 7 Old 06-30-2012, 07:57 PM
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Impossible to say without a clearer picture of the total body and fins.

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 #5 of 7 Old 07-01-2012, 12:18 PM Thread Starter
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New/better pictures

Ok I got some better pictures of my JDs.

This is the new guy
IMG_2305.jpg

This is the first one
IMG_2295.jpg
IMG_2296.jpg

And this is both of them together
IMG_2302.jpg

Thanks again, hopefully these are better!
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post #6 of 7 Old 07-02-2012, 08:52 AM
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Females generally have more blue on the gill plates, so the one with the most blue is the female.

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 #7 of 7 Old 07-19-2012, 07:56 PM
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To me they both look like females the fins are too short and the colors dont look like males im no expert but i have had jds for the past 4 years and those look like my female i had how old are the fish
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