Deformed Fish - UPDATE pg2 pic

[dee0107]

That title sounds so harsh.
I noticed one of the platy fry (born November 2011) looked slightly bent when it was a few weeks old but thought hey it was new and just one of those things that would correct. I actually totally forgot about it That was until I was feeding the babies (ranging from 4mos to 3wks) the other day and saw something. On one of the ones born from the same batch looked like a white poop was balled up and stuck. So I figured stressed and gave some deshelled peas. Two days passed and nothing. I pulled it from the tank to look better and it looks like part of the fish is protruding from it. Has anyone ever heard of this before?!

So I have that one and the bent spine. Bends at the base of the tail. Then the other with the anal issue.
Not sure if this is relevant at all. But they are all very different sizes from the same batch. Some are little itty bitty still and then middle and other that are huge!

[jobber604]

I don't have a sure answer for you but I'm sure that happens when there's continuous inbreeding. For the hundreds of fries, they'll be a few that will have the genetic deformalities. If all the fish was born like that, then there's some issues such as adverse effects of chemical contamination.

In this situation, I see you have two options. Let it live out it's life or euthanize. In the fish tank, it is survival of the fittest quoting from the words of Charles Darwin.

[christhefish]

since they are platys i would say its normal because of all the inbreeding but not normal for a healthy fish with good genes i would suggest saving only the most healthy fish and culling the rest or just not allowing them to breed and then add new stock into the group and in a few generations there could be improvements to their health

[dee0107]

I'm assuming the inbreeding is from the LFS. As I had just bought them (3 different tanks at the LFS) 3mos prior.

I feel bad

[jobber604]

Inbred through generations and generations since the species have been introduced into the hobby. Tragic but that's how breeders breed the beautiful colours.

Don't feel bad. Its part of nature. If you don't want them to suffer, net them out and place them in the freezer for a few minutes and then just dispose of them in the garden.

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[christhefish]

dont feel bad its not your fault
most fish are mass produced and deformities are a common problem as a result
the problem could also be from the fishes age too, if its really young or old
things just happen
dont worry too much about it

[dee0107]

Here's a few pics


the weird anal one ...
Image - TinyPic - Free Image Hosting, Photo Sharing & Video Hosting

bent fish - bad photo but you get the idea ...
Image - TinyPic - Free Image Hosting, Photo Sharing & Video Hosting



Is it normal to have such a huge difference in size?
Theres 3 that are tiny. The same size as my 3wk molly. Then they get slightly bigger and range almost to 1/2 the size of the 4mos one.

[christhefish]

differences in size could be from a number of things
the amount they eat, it could be genetic, frequency of water changes, or a theory of mine that in a tank with a heater and low current fish that stay near a heater will have a faster metabolism. there are other possibilities too so size is really kind of an individual issue and doesn't necessarily reflect health

[jobber604]

Size differ because of when the fry was born and how much it eats. The fries can be spawned between half a day or so, so that may matter. Some grow slower, some grow faster. They're cute when they're small.

[dee0107]

Not stressing too much over size.

Mostly just trying to figure out what deformity tht fish with white thing has.
The bent spine, I get. I've just never heard of the other though.