Tropical Fish Keeping - Aquarium fish care and resources

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Freddy 11-18-2009 12:36 PM

Black ghost knife fish missing stripe?
I have two black ghost knife fish and was looking into breeding them. I found one site that said you could sex them by the way their stripe fades near the tail. Well, I just went over to my aquarium to try, and noticed they don't have a stripe! Neither one has a stripe going along their backs. They have one on their heads, and two white bands on their tails, but they don't have a stripe on their backs. Is this just because they're young or what? Come to think of it, I think some of the pics of BGKs in wholesaler tanks shows BGKs with no stripe on their back, but I don't think this is the same thing. Is this normal?

bettababy 11-19-2009 01:50 AM

How big and old are these fish? Can you post clear photos of them for positive ID?

Freddy 11-20-2009 11:34 AM

Ok. I just took some pictures. But now I see they're too big. I'll have to resize them, but I can't on this computer. It may take me a couple of hours to be able to post them.

Not because I don't know how to resize (I'm not that stupid), but someone else is on the other computer.

The big fish is a little less than 7 inches and the little one is a little more than 4 inches.

Freddy 11-20-2009 05:58 PM

4 Attachment(s)
Here they are. I know the first one looks like a brown ghost knife, but it is black, I accidentally had the flash on and with the aquarium light it made the fish look brown. The flash scared it back behind the plants and I had to nudge him forward to get a good picture. You can see, in the last picture, him rushing back to his hiding place (backwards)

CSGT Scowen 02-09-2010 05:55 AM

G'day Freddy,
my BGK does have the line that goes along his back.
You have to wait as this does come along with time and the fish's age.


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