Tropical Fish Keeping - Aquarium fish care and resources

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sheena0709 09-04-2008 09:10 PM

Help Question?
I have a 29 gallon tank that was overstocked. So I sold some fish to someone on craigslist. I have never had a problem with any sick fish.
Well i get an email this morning saying that he put the fish in with his and now ALL the fish are dead. The person said there was a white film over the fish. Does anyone know what would have happen?? :?: :?: :cry:

1077 09-05-2008 03:12 AM

Without knowing whether the person you sold fish to acclimated them properly, what the water parameters were in their tank, Whether they added the fish to already overstocked tank, How long before the fish died ,It is near impossible to say what happened. If I had to guess , and that's all I would be doing , I would lean towards ammonia poisoning. There are few diseases that kill across species and all at once If that is indeed what happened. By adding too many fish all at once it could have caused an ammonia spike that left undetected would produce the results you described. Also another reason why most folks quarantine new fish before putting them in the community aquarium.

okiemavis 09-05-2008 03:37 PM

How many fish did you give him? I'm guessing his tank couldn't handle the additional bioload and he had an ammonia spike...but that's just my guess.

sheena0709 09-05-2008 06:21 PM

I gave him 4 guppies, 2 sailfin mollies, 2 x-ray cats, 2 tigar barbs and a cherry barb

okiemavis 09-05-2008 06:23 PM

Hmm, and what size tank were these going into? Do you know what kind of filter he had? I mean, that's a WHOLE lot of fish to be adding to a single tank at one time unless it was quite a large tank with good filtration.

sheena0709 09-06-2008 10:06 PM

they were going into a 20 gallon tank that already had fish in it. He said he was letting another tank get to room temp before he switch them over to it. btw the other one that he was letting get to room temp was a 10 gallon .

okiemavis 09-07-2008 12:23 AM

Both ways, that's a huge amount of fish to add to either tank. Sounds like he didn't realize what he was doing and caused an ammonia spike. I certainly wouldn't say it was any illness your fish brought the tank.

sheena0709 09-09-2008 07:33 PM

Thanks... that makes me feel better becuase i have never had a problem with sick fish before.

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