Are there any guppy experts that can help me ID these live bearers?

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I'm leaning towards Gambusia holbrooki. These are the mosquito fish released for control of larva. I kept some Gambusia and got rid of them with a quickness. They were killing my gups. I finally looked at Dr. Axelrod's Atlas and he lists their temperament as the old skull and bones lol. Some of your, though I believe it is because of the rounded containers, but some seem to be more rounded such as a limia or platy. If just the glass, then they went to the creek and threw in some livebearers lol. Seriously though, if you are interested in keeping and breeding endlers, I move them out. This is just my opinion.

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Pomatomus said:
Just to clarify: I don't believe that Florida has native platies, but we do have mollies. And they don't look like that.

But we do have mosquitofish, which is similar to a wild guppy. What you have there might be a mosquitofish (if not a female endlers)...

...or possibly a rainwater killifish. It's a bit hard to tell from the pics
Click to expand...
Actually Florida do have non-native livebearers. Platies and swordtails have been collected out of the canals and are found in Everglades. It is not uncommon for a fish farm that is infested with the non-native livebearers, especially the platies. How I know? I raised them! By the way this is not a rainwater killifish (where is the black spot on the dorsal fin!!!) and mosquitofish are supposed to have a teardrop under the eye and freckles on the fins..not mentioned that the mosquitofish are slender. This fish in question do not display the freckles and teardrops and the body is too thick to be a mosquitofish. I take it that you guys has never seen a wild type platy?
 
This is what a wild type or a feral platy looks like.
wildtypeplaty_zps11d1bb7a.jpg
 
I think you are missing few important traits on the fish in question: Lack of spots on the fins, no teardrop under the eye and has a slender body. I have gambusia species and the wild platies here and the fish in question looks like more platy to me than a gambusia.

None of the pictures in the link matched to the fish in question.
 
According to Peterson's field guide to North America freshwater fishes, Gambusia species has small dorsal fin and only 6 rays on the dorsal fin. There should be 1-3 rows of black spots on dorsal & caudal fin. How many rays in the dorsal does the fish in question have and does it has any black spots in the dorsal/caudal fins?

I hope this picture should help you.
gambusia_zps3ef32597.jpg
 
After looking a bit more, I think I'm going to have lean more towards Rebel's thoughts. This does appear to be Xiphophorus sp.

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Wow thanks for all the info MFKers ! You guys are seriously the best ! I was really hoping they turned out to be a goodieds lol, I can take a few more pix just in case the tube distorted the body shape , I'm positive they're not endlers because i have a few hundred of those lol , but I have about 20 of these and there are males and females . Thanks again for all the help idk what I would do without mfk lol
 
Why not take a picture of the males of fish in question? That should be end of the debate.
 
Hey guys sorry I've been workin all day , here are some pics of the male with some females .this is the biggest male I have (I know they are still really young ) I hope this can help you guys figure if out ,I'm sorry for the poor lighting but my flash is broken :-/ thanks MFKers !!!image.jpgimage.jpgimage.jpg

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