Help needed black molly breeding please - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 6 Old 06-18-2010, 09:59 PM Thread Starter
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Smile Help needed black molly breeding please

Hello there; I have 2 pairs of black molly; 2 male and 2 female. Just about 30 days ago; I moved my 2 females into a separate compartment of my tank. 3 days later; I found 3 fry. I thought that; my smaller female had given birth(as her belly was big compared to the other female before I spotted the babies); so I moved her out after the birth. The other female was also quite big and I left her in the compartment of the tank. She started getting big and her belly was very rectangular in shape. 28 days later it is still the same. Sometimes it is rectangular, sometimes her belly become small.

Is it because I am feeding her too much? And the 1st female belly hasn't grown either (although I have kept her with the other 2 males). Is there something wrong with my molly? Do males get sterile? Please help me out.

P.S : How much should I feed a single molly(normal and pregnant)? I have baby pellet. That small round food.
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post #2 of 6 Old 06-19-2010, 09:45 AM
most of the time we put in pellets and let the fish finish it.if they still seem hungry we'll put in some more and remove the balance thats not it all depends on you fish.why don't you look in the live bearer thread or check this link

5x2x2 aro,highfin bat,fei feng,ST,albino tinfoil,c.perch
4x1.5x1.5 planted tetras,harlequins,
otto,WMM,2 types of celebes rainbows,rcs,amano, bamboo,red ramhorns,MTS
3.5x2.5x2 flowerhorn,pleco
3x1.5x1.5 russel's lion,blue cleaner,sixline and leopard wrasse,maroon clown pair,green chromis,scorpion,tiger cowrie,turbo,lyretail anthias,jewel,anemone,star polyp,marbled and giant green mushi,zoa
2x1x1 nano sw shrimps
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post #3 of 6 Old 06-19-2010, 11:28 AM Thread Starter
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Thanks a lot. So this morning; I turned on the heater. The temperature raised to about 26 degree celcius. And I notice that the big female black molly which I mentioned earlier was sticking by the heater; whereas other female was not. So could this be the sign of birth? Do they need a higher temperature to give birth? Or is it just attracted to the light of the heater?
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post #4 of 6 Old 06-19-2010, 12:31 PM
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Um, I dunno. In my experiance sulking by the heater is generally a sign the fish isn't feeling good...

A good rule of thumb for guppies (assume its the same for mollies) is if you think they're pregnant, seperate them. If they haven't given birth in a few days to a week, put them back.

I've never really seperated livebearers to be honest... I just make sure the fry have lots of room to hide and that the filter isn't too strong.

Also, as a note, a hungry fish is a healthy fish. If you let your fish eat as much as they want, you'll have an extremely obese fish.

Fishes' instincts scream OVEREAT constantly, because in the wild they might not encounter a bug, worm, etc. They tend to feast when there is a heavy rain (when bugs and such get washed into the waterways) to take advantage of it, but they might not get any more protein for a while.

Especially with livebearers, since they will groom your plants and tank decor of algae.

Originally Posted by Christople View Post
^^ genius

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Last edited by redchigh; 06-19-2010 at 12:35 PM.
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post #5 of 6 Old 06-19-2010, 05:25 PM
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I always separate females that I think are pregnant. I keep them in small breeder net that hangs over the side of the tank. If she doesnt drop in a week or so I put her back in the tank. If she does drop I take her out and keep the fry in the breeder until they are big enough usually a couple of months and release them back with still plenty of hiding places. I am more used to breeding africans but it is basically the same. I put a holding female in the breeder when she spits I remove her and put her in a hospital tank to get herstrength back and feed the fry until they are big enough to move.
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post #6 of 6 Old 06-20-2010, 08:49 AM Thread Starter
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Thanks everyone. I will again put her in the compartment as soon as my swordtail is finished giving birth to the babies. So what's up with it sticking to the heater. I turned off the heater and it is back to normal. It swims, eats and I don't think it is sick either.

Is there a particular temperature for them to give birth?

Last edited by rex; 06-20-2010 at 08:55 AM.
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