Tropical Fish Keeping - Aquarium fish care and resources

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-   -   Is my Molly pregnant?? (

bheckert 08-15-2009 10:52 AM

Is my Molly pregnant??
I just recently set up a 29 gallon fish tank with my boyfriend. We bought our fish at Petco a little over a week ago. We picked out 3 Mollies, 2 Swordtails(male & female), and 3 platies (I think :P ) anyways, my boyfriend wanted the "funny looking Molly" that was in the tank. It was the only one who looked like it does so we got it. Only to bring it home and start wondering if maybe the "funny looking Molly" is pregnant. I don't know how to tell if it's a male or a female, nor do I know how to tell if it's pregnant or just deformed. Our other two Mollies both died, but this one is doing quite well so far. I know that this one is a lot chubbier than the other two, the others looked like typical fish, slender and not bulging in odd places...but this one looks like some alien-fish.

So, I've come here to find an answer. I took some pictures of her/him so you guys can see for yourself and not just imagine what this fish looks like from my terrible description above.

The last picture is kind of confusing, but probably one of the best I have.

As you can see, our aquarium is still bare. We had these seeds that we planted that we hoped would have bloomed by now since they said only 15 days but no such luck. We're going back later to return the 2 dead fish and to get some more plants and stuff. I read somewhere that you should have a lot of plants so the pregnant one will give birth or something. Is this true?

Anyone have any suggestions on what I should do? Is it pregnant? Should I go buy a net to put the fry in? I have no clue what to do! Help would be lovely!!! How do I know when she's going to give birth if she's pregnant?

British 08-15-2009 12:54 PM

That is a Baloon Molly. It is also a male. You have no need for concern on it's shape, for it has been bred to look like that.

bheckert 08-15-2009 02:25 PM

Thank you so much! I was hoping it wasn't pregnant because I'm just not ready to handle trying to raise babies and such :P

British 08-15-2009 02:57 PM

No problem. Although, with a male and female sword and three platies you're sure to have babies. If you are not concerned about keeping them and raising them, don't bother with breeder nets or anything. Plants are not nessicary for livebearers to have their fry. The plants are just for the sole purpose of a place for newborn fry to hide so they are not eaten by the parents or other fish in the tank. If you have any other questions, feel free to e-mail me. ( I'd love to help any further. I love livebearers and will have some once I get my tanks set up.(: I'm glad I can help.


bheckert 08-15-2009 07:08 PM

I actually want to have some baby fish born in my aquarium eventually, once I get to know a little more about fish and everything. But it's only been a week and I know squat so I'm happy that my Molly is a boy :P With a little more research and the help of this site I'm sure I'll be comfortable with trying to raise some fry when the time comes.

British 08-15-2009 07:36 PM

As I said, feel absolutely free to e-mail me. Livebearer fry are amoungst the easiest to raise and I'd be glad to answer any questions you may have regarding livebearers.

Oldman47 08-15-2009 08:45 PM

Livebearers are very easy to breed and raise and are also easy to sex. Although the balloon molly is a male, what about the other two?
For easy gender identification on common livebearers, you look for the shape of the anal fin. That is the fin right next to where the fish eliminate waste. I have pictures of another species of fish that makes the difference obvious and from now on you will be able to sex your own common livebearers.
This is a male and you can see the long thin anal fin, called a gonopodium, that he uses to impregnate the female.
That same gonopodium was obvious in your pictures of the balloon molly which is why it was identified as a male.

This is a female of the same species and as you can see her anal fin is more fan shaped or maybe you would call it triangular.

There are lots of fish that are not that easy to tell apart but the common livebearers all share this difference in their anal fins. It applies equally to your swordtails and platies.

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