Breeding ?'s Knight Gobys

mobababy

AC Members
Sep 8, 2005
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Hi,
I have a tank with a few night gobies as well as some other community fish.
I have on goby that is getting unusually fat. I just got the goby's less than a week ago, but this one is a lot fatter than the rest. I have been trying all day to find out info on their breeding. Here is what have so far:

If she looks like a tadpole she is Egg-Bound (what does that mean)
If she lays eggs she will protect them and fry's
They have like 1,000 eggs (is that right?)
Females have an ovipositor viewable when they are egg-bound (is that a bad thing)


So is any of that true?
I can see her ovipositor (I think) it’s just a round white this sticking out where she would poop.
She is only 2 inches, is she even big enough breed?
I am not positive she is a she.

If she is a she and she is pregnant, how long will she be pregnant for then how long will it take the eggs to hatch?
Will she really protect them, how small will the fry and the eggs be?
Is it best to put her in a breeding net now?

What else do I need to know?

Thanks so much
~Chris' wife~
 
I am not sure about this but i have heard that females have a smaller fin on top than the males. I can notice this with my gobys. I hope this helps.
Emery
 
Knight Gobies are brackish water fish and do not belong in freshwater.

It is possible that if she is carrying eggs she may retain them in freshwater as it is not the normal breeding environment for them. I do not know what the consequences would be if she did retain them.

Regardless of whether it's a she or he, I would suggest you copy your post to the Brackish Water forum. Someone in there may be able to help you better.

Roan
 
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Female knight gobies are more rounded than the males, even without eggs. Males are slimmer and do have a longer dorsal fin. I keep a male and female pair in brackish water and they have formed a loose bond but no spawnings yet though. As far as I know, the female lays the eggs on the roof of their cave and both parents guard the eggs and fry. I don't know if eggs or fry will survive freshwater because they are brackish fish.
 
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