Is there such a thing as a fish being too inbred?

[Plecos_Ftw]

We have a breeding pair of electric yellows, they are like 3rd or 4th gen from a group of yellows we had before. Heres my question, they do their little "move and shake" and the female allways looks like shes holding. She swims to the surface and stays there, gets puffy you know what they do. Soo, why arent there any fry? She doesnt get stressed at all, so I dont see why should would swallow them. Shes alllllllllwaayyyss and has always acted like shes holding for a while now. I doubt anyone in there would eat them either. We joke because we said shes so inbred she doesnt have a proper mouth or somethin. Any ideas?

 

[Potts050]

Is she still young? Often new breeder females swallow there eggs a few times before the full spectrum of maternal behaviour kicks in.

 

[Plecos_Ftw]

Shes at least 2 years old and has done this countless times. shes at the top as we speak.

 

[pleco52]

it might b worth tryin a different female

 

[ewurm]

Definitely is. Fish that have too many recessive genes exhibit the same character issues people do. Malformity, odd color, behavioral issues, affinity for poor quality light beer. For example:

 

[Mystix212]

Too much inbreeding and you wind up with this.

 

[guppy]

Yes, fish can be to inbred, when developing a strain of guppies it is best to outbreed every 3-5 generations even though this slows things down alot. The reason for this is infertility and spinal deformities. I see no reason that this should not apply to other breeds of fish, or for that matter humans, just look at the Hapsburgs.

 

[bubblereef]

brandine, i was mowing my lawn and i done found my car, still has tires on it.

 

[Toby_H]

I believe that there are two main reasons why aquarium bred fish are inferior to wild caught…
In the wild, only the absolute strongest fry ever survive to adulthood, and therefore only the absolute strongest fish ever have a chance to spawn… in the hobby we remove the threats to our fry and allow the majority of the fish to grow out and potentially spawn…
The second reason is heavy inbreeding.
There are situations where fish can be inbred to bring out certain qualities, but if we selective breed for say coloration, we are sacrificing health.
Also more complicated color morphs are often spawned Father to Daughter, which compounds this even more.
I’m actually shoulder deep in spawning Jack Dempseys trying to diversify bloodlines and isolate the absolute strongest fish of each brood to be future spawners. This is all in attempts to strengthen the available line of Blue Dempseys…

 

[snaggle]

Every generation should have at least one new fish added to it so you keep a little genetic diversity. If you don't you fish will be week and not live as long.

Also when you buy your groups unless you know they are wild caught I would buy fish from at least 3 stores to help make sure that the fish you buy are not from the same breeders