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Cory Catastrophy!
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plastic plant
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Joined: 03 Apr 2006
Location: BC, Canada

PostPosted: 2007.01.23(Tue)20:41    Post subject: Cory Catastrophy! Reply with quote

I have a 30 gallon tank with one lemon tetra, two black skirt(one of which is a long fin) four newly bought glolight teras, three cory catfish(peppered) two of which are new, and one rubber lipped plecostamus. one of the new corys, the smallest of the bunch, is having laboured breathing. But not on the surface. Though he did rush up once or twice before coming down too lay sideways on one of the plants. He doesn't move more than he has too. I had this same problem with another of my corys, who died about a month ago. He started with the same symptom, but after few days he got a lesion, or soar behid his eye, it wasnt scabbing(do fish scab??) but you could see the tiny viens and such. It didn't openly bleed into the tank. Then one of his eyes protruded from his head. (popeye perhapes?) It was around this time my other cory in the tank contracted the first symptom. I was able too get to the pet store where I bought some mela fix. I used the whole small bottle, though stupidly left the charcoal in, I thought it wouldnt do anything as it was about a month old, I just kept cleaning the filter media on top. (Its a all in one filter cartrige) but he died. The other fish continued with the crazed breathing and lethargy, but was soon back too normal after about a week and a half. Is this the same disease? Any help is gratefully appreciated!!!

I am aware that my tetra population is quite sporadic, but three lemons died, and two black skirts over a long period, due too water change neglect most likely... Embarassed This is why I bought the four other glolights after doing a big tank clean (unrecomended, I know), of which I am going too get more soon, the tetras all hang together anyways.

Thanks
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sepgundamrg
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Joined: 18 Dec 2006
Location: Arkansas

PostPosted: 2007.01.23(Tue)22:13    Post subject: Reply with quote

What are you water paramaters, posting theese will help others help you.
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plastic plant
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Joined: 03 Apr 2006
Location: BC, Canada

PostPosted: 2007.01.23(Tue)23:19    Post subject: Reply with quote

That would be the problem, the only other test kit I have is a water hardness test kit. I changed the water two days aga so if thiers no ammonia reading, unless it cycles(for lack of a better word) quite quickly thier shouldnt be any nitrate, let alone nitrite.....right? Confused Anyways the water hardness is about 110 - 120 ppm. That may not help...
thanks for the help, if thiers anything else I should add please ask.
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sepgundamrg
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Joined: 18 Dec 2006
Location: Arkansas

PostPosted: 2007.01.24(Wed)0:03    Post subject: Reply with quote

Do you know your pH? Also, nitrite should always be at 0 with slight nitrates for plants to eat up.
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plastic plant
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Joined: 03 Apr 2006
Location: BC, Canada

PostPosted: 2007.01.24(Wed)16:41    Post subject: Reply with quote

the pH is roughly 7.6, that was taken using a pool test kit, so its on a very large scale.....I'm drastically underequiped..... Sad
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sepgundamrg
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Joined: 18 Dec 2006
Location: Arkansas

PostPosted: 2007.01.24(Wed)17:19    Post subject: Reply with quote

hmm. I wish someone who could help would post. I konw very little about cory's, and even less about desease. The only thing I can think of would be not enough oxygen disolved in the tank or an internal parasite. I am leaning more towards a parasite because this is only happening to the cory, not the tetras.

Your pH is a little high for peppereed cory's also.
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plastic plant
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Joined: 03 Apr 2006
Location: BC, Canada

PostPosted: 2007.01.24(Wed)17:38    Post subject: Reply with quote

hmmm, thanks a lot for the help...I have the tank at 73 degrees farenhiet right now, no heater. Its within the acceptable range for all of the fish I have...
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sepgundamrg
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Joined: 18 Dec 2006
Location: Arkansas

PostPosted: 2007.01.25(Thu)3:25    Post subject: Reply with quote

Have you checked the sticky in this section, the one with a link to a disease site or something like that. I think your fish definately(SP?) has something wrong internaly, but I would give it a good external check up. Look for anything that is unusual, a smal lump, odd looking scales(do cory's have scales?), small wounds, niped fins. I would also get 2 or 3 more cory's since they are shoaling fish(5 or more), but I would wait untill you get this under controll.
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plastic plant
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Joined: 03 Apr 2006
Location: BC, Canada

PostPosted: 2007.01.25(Thu)8:24    Post subject: Reply with quote

Thanks a bunch sepgundamrg, Ill take a look at the stickey too see if I can find anything. But wouldnt five corys in a thirty gallon tank be too many? Especially when cleaning???
Thanks
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ceci9293
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Joined: 24 Aug 2006
Location: Austin, TX

PostPosted: 2007.01.27(Sat)21:13    Post subject: Reply with quote

When I read that initial post, it sounded like descriptions I've read of hole-in-the-head disease, so I looked it up.

This page is about cichlids but the description sounds like what happened to your cory. It blames the condition on poor water conditions over a protracted period of time. Not to say that your tank is filthy, but since your cories make a habit of rooting around in the gravel, they'd be the first to suffer if it is getting dirty. And since you don't have test kits, it's hard to know what's going on in there...

This page says that the disease can occur in any fish and that it is parasitic in nature, which means that besides getting your gravel vacuumed and the levels in your water tested and fixed, you should look into the medications discussed so that your other fish don't eventually succumb too.

Please bear in mind, I'm not an expert, but you're not getting many other answers so I thought I'd share what I thought. If you lose another fish and can take the body to a knowledgable aquarium hobby shop so they can see the lesions, you might be able to get a more confident diagnosis.
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