Animal Stories - People Talking About Livebearing Aquarium Fish


Animal-World info on Mollies
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Candice - 2012-04-01
I've got a 75 gallon tank with a lot of live bearers. About 20 fish in all. Recently while doing a water change I noticed some baby mollies so I caught them and moved them to a nursery tank. This was about 3 weeks ago. Later in the day after I finished the water change I noticed another baby swimming around a rock cave in the corner. Never could catch this one...it swims too fast for me to grab with the net. Deciding that Nature would probably take its course I left the baby alone. Three weeks later, the babies in the nursery tank are quite large and resembling balloon bellied mollies. The baby left in the big tank is still quite small and seems to have escaped being eaten. Do I need to put more effort into catching this fish since it doesn't seem to be growing like its siblings?

If necessary to know, my fish are:
5 mollies (1m 4f)
5 balloon belly mollies (1m 4f)
4 platys (1m 3f)
7 guppies (2m 5f)

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  • Jeremy Roche - 2012-04-02
    No real need. Remember the one with the big fish is more active so it is burning more calories and probably not getting spoiled with as much food since it is getting the big fishes leftovers.
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Animal-World info on Four-Eyed Fish
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Meredith - 2006-02-23
Wonderful to own, not quite as easy to breed. Finally caught a birth on film, only to lose all of the fry. Their personalities are amazing and they do "see" outside the tank to the entire environment.

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  • Ryan\'s - 2012-03-31
    Were do I buy these fish!?
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Animal-World info on Mollies
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Animal - 2012-03-31
If you buy female mollies from an aquarium with differing sexes, there is a strong chance that they become very suddenly pregnant, so be careful when buying females when there are males in the tank.

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Animal-World info on Fancy Guppies
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Sarah - 2012-01-11
I have several guppies,and I'm not sure what to do

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  • Sara - 2012-01-11
    NEVER put them with betta or siamese fighting fish. That can be trouble. They like to nip at the fins. They are peaceful otherwise. They form loose schools
  • Angie - 2012-03-09
    I have had my guppies with my beta for 6 months now and never had a problem. It may be that i have a 110 gallon tank but the beta is doing just fine. My only problem with the guppies is i am getting over run. Started with 3 6 months ago and now have over 30,and now thw babies are having babies.
  • Anonymous - 2012-03-14
    Also don't put them in the tank with angelfish
  • James - 2012-03-23
    get a bottom feeder or dwarf frog that will eat the fry for you. That will help control the population. Other than that, you just need to start giving some away because they dont die easy.
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Animal-World info on Mollies
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Samantha - 2010-07-15
I just bought 3 mollies today from pet smart. My husband and I went out to dinner and came home to find that one of them had given birth to 5 babies. I can't tell the difference between male and female and have NO idea how to care for them. Can someone PLEASE help. I will check back here for any answers or feel free to email me at stoomey93@gmail.com

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  • Jeremy Roche - 2012-03-13
    If you look at the molly page on Animal World you will see the top picture(Silver Lyretail Molly) look at botton fin near anus. Thats a female. Now look at the third picture(Silver Balloon Molly), thats a male.
  • Odell - 2012-03-12
    You can tell if it's a male or female by the anal fin. The male
    will look like a flat hook and the female like regular fishes.
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Animal-World info on Platies - Moonfish
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Anonymous - 2012-03-03
My platy has white scales on top near its eyes. It is about 1/2 inch long and a few centimeters wide. I dont know if she cut herself or if she's just sick. Please help

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  • Jeremy Roche - 2012-03-04
    Hard to real answer without more or a picture. Sometimes if Amonia levels are spiking fish will itch themselves and leave almost a white scab. Eyes clouding at all? Only in that one spot?
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Animal-World info on Swordtail Fish
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valerie - 2012-03-01
We have some 3 month old fry red sword tails and we were wondering how long till we will start to see the tails on the males. The guy at the pet shop says about 2 months old....really, because if this were the case I have a tank FULL of females :/

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  • Jeremy Roche - 2012-03-02
    It normally takes longer then that to grow the actual sword. Check the gonopodia. The gonopodia is the fin on the underside of the fish. Females will have rounded fin and male will have a thin longer fin pointing to the rear.
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Animal-World info on Mollies
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kester apostol - 2011-12-21
Hi, I have 4 different molly females and 1 male black molly..will that be enough?..or do I need to buy another one?

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  • Charlie Roche - 2011-12-21
    Yep, that's enough.
  • abhishek sahane - 2012-02-11
    Keep it as it is because if there are more males they fight. More females and if there is strong male it is easy for breeding
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Animal-World info on Platies - Moonfish
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lizz - 2012-01-09
I have blue moons that just had babies. Shes had about 23 so far. I think I moved her out of the breeding box to soon and she may still have more in her... shes still got the black stop not interested in food and not very active. so questions 1) how do I know when she is done giving birth 2) the fry are in a net breeding basket is this better than the plastic box... also tips on raising the fry is welcomed

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  • nm123 - 2012-01-19
    if the black spot is still there your fish is still pregnantt i would recommend you move the fish back into the net breeder move the fry into another tank to prevent the mother from eAting the young or end up losing the pregnant mother platy I would highly recommend that you use a plastic net breeder because if you have anglefish in the tank you will end up losing most of the babies also when the fish is done giving birth the black spot will fade
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Animal-World info on Mollies
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Michele G. - 2011-07-12
HELP!!!! I recently bought 4 silver mollies. They are in a 55gal tank with 2 plecos, 7 catfish, 3 alge eaters and 4 swordtails. Less then a week after I brought them home, I noticed one had a big belly and a gravid spot. A little bit later..we had babies. This was fine with me. Two weeks later...we had MORE babies. Now - I just noticed EVEN MORE babies. They all appear to have a rounded anal fin. None of them appear to be males - who is getting them pregnant? Do I have the Immaculate Concepcion of the fish world???

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  • Charlie Roche - 2011-07-12
    I think there must be a male but you don't need a male for females to lay eggs - but I am not sure about fish. You need another tank - 55 gallons is too small for 7 catfish, 2 plecos, e alge eaters and 4 mollies and 4 swortails. Rule of thumb every one each of adult fish needs one gallon of water. You need to separate out the fish in the tank as they are going to get agressive on each other (or stress or ill). You also need a tank for babies cuz the bigger fish are going to see food when the fry swim. Immaculate conception - probably not but stuff happens. Good luck and have fun.
  • Amelia - 2011-10-23
    Mollies and other livebearing fish are almost always pregnant when you get them. They can also get pregnant w/ a male and then get removed to an all girl tank and they will continue to have babies about once a month for a few months! Yes, they only have to do it once! Also they are closely related to platys and swords...I think they can procreate w/these. My surprise comes from all your fish NOT eating most of these babies/fry and leaving you w/10 or less each batch...natural selection in their world! Why haven't your other fish helped a bit?
  • zeke - 2012-01-16
    Dude you should get those baby mollys - wait till they grow up and you can make a quick buck with them:D
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