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January 21st, 2008
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Fish Keeper
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2 dead corys in 2 days, help!
hey everybody. i yesterday i found a dead cory in my 55. not sure what happened. i added some extra prime in case the dead fish gave off a lot of ammonia, and did a 50% water change. today, i see another dead cory! i hav 0 ammonia 0 nitrite and less than 10 ppm nitrate.
what could be causing these deaths?
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January 21st, 2008
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Fish Keeper
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you shouldnt of did a 50 gallon water change after losing a fish. in 55 gallon one dead cory shoudlnt of realy really produced thatmuch ammonia to harm the other fish unless it had the white mold growing around it but i have been missing fish for over a weak and find them wedged under rock. the 50 percent change might have stress the fish out and possibably will throw it into a mini cycle. cories can be sensitive to the water change might have stressed it out
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January 22nd, 2008
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Master Of Fish Poo!
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Did you take those readings within 24 hours of a water change? If so, take them again after it's been at least 24 hours to get more 'settled' results. Did the corys show any signs of being bitten, redness, etc?
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January 22nd, 2008
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Fish Keeper
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no the corys looked fine. and before and after the water changes, my nitrates were below 10. im starting to think that petsmart is selling me low quality fish, because i have this amazing LFS that ive never had a dead fish from (even with neons!), and almost all my petsmart fish hav died for no reason
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January 22nd, 2008
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Fish Keeper
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Quote:
Originally Posted by lilsoccakid
no the corys looked fine. and before and after the water changes, my nitrates were below 10. im starting to think that petsmart is selling me low quality fish, because i have this amazing LFS that ive never had a dead fish from (even with neons!), and almost all my petsmart fish hav died for no reason
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i know waht you mean the fish from my lfs last alot longer and look better but hey have only a 48 hour garantee compared to petcos or smarts 2 week |
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January 23rd, 2008
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Fish Keeper
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yea my awsome LFS only has a 2 day guarentee, but i feel much more comfortable buying from them
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January 23rd, 2008
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Fish Mentor
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Corys are like the canary in a mine. If the water has problems they are the first ones to suffer, that said, I would say a 50% change was the right thing to do. HOWEVER, when you do that, may I suggest to do a 25% change, then another 25% change.....This cuts down the stress....
Sorry, corys are one of my favorites! Were they relatively new to your tank? Don't give up on them, when they survive the first month, they make a super addition to your tank, and can be really long lived...They also do better in groups of 3-5 or more, so if you only had 2 THAT in itself could have caused some stress...
Good Luck  |
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January 23rd, 2008
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Fish Keeper
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i wont give up on them, i love them! i had them for about a month. also, they were in a group of 4, which is now down to 2, so ill be buying 3 more when i find some i like
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January 23rd, 2008
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Fish Keeper
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Maybe when you do find more corys, try adding them slowly...maybe 1 at a time, they might stress less that way. Just an idea to help you from losing more. I have 3 corys, and they are so funny.  |
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January 23rd, 2008
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Fish Keeper
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im going to get a couple more leopard corys (not at once) when i can find them, i love the way they look!
ill post pics of my leopard in about 5 minutes
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January 23rd, 2008
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Fish Keeper
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sorry for the bad quality, its my cell phone camera. tomorrow ill take some nicer pics!
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January 23rd, 2008
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Fish Keeper
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Awww, what a cutie.  I have 2 leopards and a panda. They are so cute, I can tell they just love each other too. My 3 get so silly/happy swimming all over they are a hoot to watch. Glad you're going to add them gradually. Keep an eye on you newbie, for a few days. Oh, they love shrimp pellets alot too! |
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January 27th, 2008
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Fish Keeper
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i just got a 2 month old panda and another leopard! the panda is not even half an inch long, but he still tries to school and play with the big corys! ill take some pics and a vid right now!
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January 27th, 2008
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Fish Keeper
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here they are! couldnt get many good pics they were hiding, and i had to use my bad camera
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January 30th, 2008
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Master Of Fish Poo!
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I love panda corys.. probably my 2nd fave after orange lasers.  |
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January 30th, 2008
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Fish Master
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Well, I wouldn't be quite so alarmed about 50% water changes. I do about 50% once per week, and they're all OK. What could possibly cause a mini-cycle is a massive change of filter medium and/or substrate.
Panda corys can be super sensitive to just about anything. I had 5 that were totally fine for weeks, then I lost them all to fungus one by one, a day at a time. I still dont' know what's happened, but my other corys (and betta) in there are perfectly fine.
Quote:
Originally Posted by Cody
you shouldnt of did a 50 gallon water change after losing a fish. in 55 gallon one dead cory shoudlnt of realy really produced thatmuch ammonia to harm the other fish unless it had the white mold growing around it but i have been missing fish for over a weak and find them wedged under rock. the 50 percent change might have stress the fish out and possibably will throw it into a mini cycle. cories can be sensitive to the water change might have stressed it out
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