fish wiggling? - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 4 Old 02-05-2009, 06:54 PM Thread Starter
fish wiggling?

I have a female balloon belly molly that I have raised from birth. She is honestly the oddest fish I have ever seen. I saw her being born, and her mother was a balloon belly. However, she does not look like a balloon belly. She is white with yellow and orange specks, and small black dots that come and go. She is very long and big. Could it be possible that she is part regular molly, or that she has a birth defect?

For as long as I can remember, she has stayed constantly next to the heater, wiggling back and forth. The wiggling will start out slow, but will get violent, almost like seizing. She is my oldest fish, and does not show any signs of sickness besides this. She has been doing this her whole life. Also, the tank is warm enough, and sometimes when she is by the heater,the heater isnt even on. Please help! I have no idea what is wrong with my fish!

I have a 15 gallon tank full of balloon belly mollies. I love fish, and hope to become a marine biologist
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post #2 of 4 Old 02-05-2009, 08:24 PM
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There is nothing wrong with a properly formed molly. She does not have the genetic defect carried by her mother but that does not make her defective in any way. It is like calling a genetically blind person's child defective because they can see. The shimmy is usually a result of low water hardness when you see it in a molly. They make things called shimmy blocks as a cure but an easy cure is to add some calcium carbonate to the water by using crushed shells or crushed coral in the filter. If you have soft water fish in the same tank, it may cause them some distress though.
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post #3 of 4 Old 02-05-2009, 09:11 PM
Wiggling can also be accompanied by clamped fins/tail and shimminess. Try CC as other mentioned. If probelm persist/gets worse, I achieved good results treating them as early as possible. keep us posted w/ progress.
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post #4 of 4 Old 02-07-2009, 11:40 AM Thread Starter
Thank you sooo much!

I have a 15 gallon tank full of balloon belly mollies. I love fish, and hope to become a marine biologist
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