My fish are acting different. - Tropical Fish Keeping - Aquarium fish care and resources

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post #1 of 35 Old 05-08-2013, 10:11 PM Thread Starter
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My fish are acting different.

I have mostly Mollies and a couple of Tetras, one just had babies. I keep seeing my fish rub against objects in the tank. Im not sure what that means or what to do?? Im sorta new to this.
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post #2 of 35 Old 05-09-2013, 05:58 AM
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They could be trying to get rid of parasites. What size and temperature is your tank ? Exactly what and how many fish are in it ? Any new fish or plants added lately ?
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post #3 of 35 Old 05-09-2013, 07:46 AM Thread Starter
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Its a 40g tank, I have 9 fish and about 10 little baby tetras. The temp is about 75 degrees and no i havnt added any thing lately. I have 2 Tetras. not sure the exact name. 4 balloon belly Mollies. 2 other Mollies again not sure the exact name. oh and a bottom feeder.
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post #4 of 35 Old 05-09-2013, 08:12 AM
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Try bumping up the temperature to about 82 for a few days. If the problem is Ick, that might be all you have to do. Keep an eye out for any spots or discoloration. Let us know what's going on from time to time. Good luck.

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post #5 of 35 Old 05-09-2013, 08:18 AM Thread Starter
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Thanks for the help! i will try this and let you know how things are going.
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post #6 of 35 Old 05-09-2013, 09:20 AM
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Good luck, keep a close eye on them, and let us know if you see any other symptoms develop. . . :(
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post #7 of 35 Old 05-09-2013, 12:00 PM
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There are several possible reasons, which you (we) should explore. Flashing [the term for what you are seeing] can be caused by gill flukes, ich, velvet and other parasites, ammonia, nitrite, nitrate, and inappropriate GH and pH.

Which fish species are doing the flashing?
What are your water parameters, meaning GH (general hardness) and pH?
Have you tested for ammonia, nitrite and nitrate?

Byron.
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Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If youíre going to take it under your wing then youíre responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #8 of 35 Old 05-09-2013, 02:39 PM Thread Starter
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Its mostly the Mollies, i seen 3 of them doing it in the last couple of days. And like i said im still sorta new to this so im not sure. Im going as soon as possible to get the water tested. I dont have the test kit..
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post #9 of 35 Old 05-09-2013, 02:47 PM Thread Starter
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My black Molly is the worst. I see him doing it the most! Whats the fastest way to treat this???, I am also raising my temperature upp to 82 degress. Advice from Fishmonger
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post #10 of 35 Old 05-09-2013, 02:49 PM
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Quote:
Originally Posted by Bradman View Post
Its mostly the Mollies, i seen 3 of them doing it in the last couple of days. And like i said im still sorta new to this so im not sure. Im going as soon as possible to get the water tested. I dont have the test kit..
OK, this is starting to make some sense, if it is just the mollies.

First, on the GH and pH of your water, this you can ascertain from the municipal water supply folks; many have a website with water data posted. If you find it and can't decipher it, post the link and one of us will check. Water params are vital to mollies, and the flashing might very well be due to this.

As for the ammonia, nitrite and nitrate, your fish store should be able to test these. But please ask them for numbers, not some generic term like "looks fine," or "is a bit high but OK" which tells us nothing. Numbers for tests, always, is crucial.

Other very important questions...how long have you had this tank running? And how long have you had the mollies? And when were the last new fish added, if other than the mollies?

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If youíre going to take it under your wing then youíre responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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