got some new platies? - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 23 Old 01-02-2007, 09:23 PM Thread Starter
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got some new platies?

i have 4 new platies i bought, the guy who sold them really couldnt sex them since you catch whatever you can get from the tank, i roughly know how to sex these fish. do the males have a little tube there and the females have a fanned out anal fin? if so i have 2 females and 2 males in a 10 gallon tank. im wondering if thats a good amount and if i sexed them right. im really really hoping for babies soon! by the way there micky mouse platies because of the three small dots at the start of there tail fin.
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post #2 of 23 Old 01-02-2007, 11:39 PM
Yes, the males will have the gonopodium, which is a tube like structure. The females will not. It is exciting to find babies, but eventually, the tank will be overrun, so I hope that you a plan for the babies.
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post #3 of 23 Old 01-03-2007, 12:21 PM
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i found a picture on google hope it helps
you sould have no probs breeding platies:D
Sexing:
There are many ways to sex a Platy (these sexing methods, by the way, can be applied to all livebearers), but there are two that are more widely used than others. The first method is to observe the shape of the Platy, Females will be longer, and also have wider stomachs (even when not pregnant) than males. The second method (and most accurate) involves observing the three fins on the underbelly of the fish. Female Platy's will have three almost identical fins, two a little further up the belly (closer to the front) than the rear, and with a male, the two frontal fins will be the same, but the aft fin will be much smaller, and pointed.

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post #4 of 23 Old 01-03-2007, 07:26 PM Thread Starter
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good good i was right. man mollies are really excitable! they really like to eat.
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post #5 of 23 Old 01-03-2007, 11:57 PM
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If breeding is what you have in mind, I agree with eddie, NOW is the time to start planning another tank. The average breeding cycle for platys (and other live bearers) is 30 - 50 fry up to every 30 days. The fry grow fast, and WILL inbreed if not seperated as soon as possible once you can tell the difference.

Something else I would be concerned about is the number of females vs males in your tank. A healthy livebearer tank will have 2 females for each male... because their favorite thing to do is breed. With 2 of each, the males have nobody else to chase while these 2 females are allowed to rest. Often times pairing livebearers will result in only male fish surviving in the tank. considering your tank size, you might want to consider returning 1 of the males.

Also, if the females came from a tank with mixed male/female fish at the store, then the females are already likely pregnant if they are mature enough to breed. I'd say watch for babies to start showing up at any time, even if the females don't appear to be pregnant at the moment. Healthy female livebearers (mixed with healthy males) will be pregnant almost all the time.

Dawn Moneyhan
Aquatics Specialist/Nutritionist
Juneau, WI
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post #6 of 23 Old 01-04-2007, 07:42 PM Thread Starter
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ok i already knew most of that. and i also read that the 2 on 1 ratio was the best but for me i think it will be OK!!! and i already have a fry tank getting setup in a few days. dont worry ive been looking around the forum at breeding tips.
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post #7 of 23 Old 01-04-2007, 10:37 PM
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I don't want to be insulting, but what makes the ratio needs different in your situation? In a 10 gallon tank, the 2 females per male is going to be even more important because the females will have a lot less space to get away from the males.

Dawn Moneyhan
Aquatics Specialist/Nutritionist
Juneau, WI
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post #8 of 23 Old 01-06-2007, 08:02 PM Thread Starter
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well theres a good amount of plants and rock caves for hiding.
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post #9 of 23 Old 01-06-2007, 10:58 PM
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Even with caves, which I would expect there to be hiding places of some kind, will not prevent the males from chasing the females if each only has 1 to chase. If one of those 2 females goes into hiding somewhere effective, that means the other female is left with 2 males chasing her. Either way you look at it, in a 10 gallon tank, that's not a good ratio.

Dawn Moneyhan
Aquatics Specialist/Nutritionist
Juneau, WI
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post #10 of 23 Old 01-06-2007, 11:28 PM Thread Starter
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well then maybe ill just take one male out and put him in my extra ten gallon that im going to have and get him his own girlfriends eh!?!~!
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