Tropical Fish Keeping - Aquarium fish care and resources

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-   -   Are my danios ok? (http://www.tropicalfishkeeping.com/cyprinids-atherinids/my-danios-ok-16607/)

tweak 07-28-2008 01:48 PM

Are my danios ok?
 
Hello,

I've 6, 3 leopard and 3 zebra and 3 look like they are ready to pop so I'm assuming 3 females and 3 males. My worry is, is that the females have been very round now for a very long time... is it a sign that there is something wrong with the tank water or just that I have 3 fat fish?

I'm not looking to breed but I heard that they are very good breeders so its made me worry a bit about the water quality. I have used those tetra water quality test kit and the colours are all in the green figures, so I'm a bit puzzled.

Thanks for any advice.

iamntbatman 07-28-2008 03:18 PM

Could you post your water parameters? Have you seen the fish in question poop recently? They might be constipated or could even have dropsy.

If your water parameters are all checking out ok, it's more likely that you've just got some chubby, pregnant females. I know mine stay pretty plump all the time. I'm pretty sure mine spawn all of the time, but since they're in a community tank and do nothing to care for their eggs or fry, I think all of the eggs get eaten pretty much the moment they're laid.

A picture would help determine whether you've got a sick fish, or just a plump female.

tweak 07-29-2008 04:36 AM

Ok. thanks, I'll take some pictures and post up the parameters later on today.

tweak 07-29-2008 07:38 AM

For some reason I can't upload the picture on here, it doesn't send anything so this is the next best thing:

http://deguworld.proboards31.com/ind...at&thread=3051

As for the parameters:
pH = 6.8
Nitrites = 0
Nitrates = 10mg/l
GH = between 175 to 280ppm (test says >10od but <16od)
Temperature = 27oC

I recently did a water change last week.

Little-Fizz 07-29-2008 09:23 AM

It doesn't look like dropsy, and its not really bulging like it would if they were constipated. Looks like they are carrying eggs?

tweak 07-31-2008 02:59 AM

Thanks Little-Fizz

I've never seen any evidence of spawning and I've had them for a year. Is that normal?

iamntbatman 07-31-2008 01:29 PM

Those definitely look like some pregnant females to me. I wouldn't be worried. I'm pretty sure my danios spawn all the time, it's just that the eggs get eaten practically right as they're laid so it's hard to really tell what's going on.

tweak 08-01-2008 02:47 AM

Had a panic yesterday as I thought one of the fat ones had died and then I noticed I 4 thin fish instead of 3! Must be eggs, so now I'll keep my eye on the remaining two since I know that they should become skinny again shortly.

Thanks for your help. I feel much happier now.


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