Why are my baby Mollys suddenly dieing one by one?

I had about 18 baby mollys in a 2.5 gallon tank but they were dieing one by one in it. So i moved them into the 30 gallon tank with the bigger fish (i used a tank divider so they have about one fifth of the tank. There side includes the heater and a small artificial plant. I notice a baby molly with get slow and stick toward the bottom of the tank but swim up during feeding.I feed them live baby brine shrimp,crushed flakes, regular freeze dried brine shrimp, and i used to feed them first bites. I have had them for about 6 months and they are about half a inch, I just added 2 pregnet mollies to there side of the tank and a baby molly who grew up with them most of there lives (i could only find one baby guppy when i got home). I have it filtered, airstone,heated, and the nitate cycle is fine. I had the water tested with Ph nitrate ext. This is when all y angel fish died and it turned out to be a Ph problem but i fixed it. I also notice some baby mollys eyes look cloudy and swollen.Thanks
They are in a 30 gallon tank with a divider and it is heated, filtered and has a pump. I also balanced out the Ph level that killed my angel fish. I treated the babies for ick about a day after they got into the tank because they had the disease. I also used water condition for cloarine and just changed the filter.

4 Responses to Why are my baby Mollys suddenly dieing one by one?

  1. youve got bad water quality.this is the number of problems you have

    1.fish tank to small
    2.is it heated
    3.is it filterd
    4 has it got a pump

    http://www.google.com/search?hl=en&q=hatching+brine+shrimp&btnG=Search

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  2. I would have to say it is a water problem ammonia or nitrate, Try doing about a 50 percent water change and then wait a few days and do another 50 percent water change use water conditioner so you get the chlorine out and if that does not help then it could be a disease in your tank but, for now do big frequent water changes it should definitely help even if there is a disease in the tank. Hope this helped

    http://www.google.com/search?hl=en&q=hatching+brine+shrimp&btnG=Search

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  3. My guess would be the stress due to overcrowding, environment, and their diet. There are several factors that are causing you grief here:

    -Fluctuating water parameters, including unstable pH, but mainly from moving from one tank to the other.
    -Overcrowding in the small tank, causing stress and higher ammonia levels and unstable water temps (very common in small tanks)
    -Diet, live brine shrimp needs to be rinsed thoroughly and then rinsed again in conditioned water, not chlorinated tap water. Also, I have found that freeze-dried foods should not be directly fed to baby fish, but the food should be soaked in conditioned water until they have reabsorbed the normal amount of moisture.

    This has caused an outbreak of disease in your tank, and in some cases, there are no signs of issues except death. You also have abnormally slow growth in your tank, as 6 month old mollies should be about 3/4-1 inch in length. Once your mollies were about 3 weeks old, they should have been released into the main 30gal tank without the divider. It is also necessary to have lots of live plants in your aquarium for raising fry, as the newborn fry will require a diet of plant life and the micro-organisms that live among the plants.

    http://www.google.com/search?hl=en&q=hatching+brine+shrimp&btnG=Search

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  4. i also have a problem with mollys i cannot keep them alive i am trying to breed them but they all die. all my water and all that is fine too there suppose to be easy to maintain but i dont think they are

    http://www.google.com/search?hl=en&q=hatching+brine+shrimp&btnG=Search

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