Hole in Cory's Caudal Peduncle - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 5 Old 02-24-2012, 03:22 AM Thread Starter
Hole in Cory's Caudal Peduncle

I have no experience treating catfish. In fact, I'm half scared to because they are so sensitive to medications. But I can't just leave this alone. Advice on how to help this poor guy?

Additional info: 20 gallon long community with rummynoses, neons, guppies, and 1 betta male who was added only a few days ago. Tank is cycled and overfiltered, 50% changes per week.

Sorry, I can't resize the photos right now so here are direct links to photobucket.



You can see there are reddish lumps above and below the hole. This poor fellow is also blind in one eye, although I honestly don't know how it happened as there are no obvious injuries to his eye and being nocturnal and in a heavily planted tank, I don't always get to see him up close. It's simply cloudy. He's the sole remainder of his panda school; the other cories are Venezuelan Red Sailfin cories.
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post #2 of 5 Old 02-24-2012, 06:19 AM
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Not enough info on tank (parameter's) for anyone to offer anything other than guess as to what may have contributed to the what looks to be bacterial infection.
Could treat with anti bacterial, but if problem is related to enviornmental stress, (most issues are), and this is not corrected,then prognosis is poor.
Were it me (and it ain't) and all parameter's were in order, and fish was not subjected to cycling,non zero levels of ammonia,nitrites,nitrates are 20 ppm or lower,no attacks from tank mates,I might try 2ml of Hydrogen peroxide (3%) per 10 gal of water for two day's, with 30 to 50 percent water change before first dose, day after first dose,and after last dose and then observe the fish for a few day's for improvement.
Note,, I am no expert on fish illness or disease, nor accept any responsibility for death of fishes should you choose to treat as described.
Would happily accept thank you ,should fishes condition improve.

The most important medication in your fish medicine cabinet is.. Clean water.
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post #3 of 5 Old 02-24-2012, 09:11 AM Thread Starter
All params were normal. pH has always been on the high side, 8.0, but I've been able to lower it to around 7.8 using Kent's Blackwater Expert (for the tetras). Water is soft (house has water softener). He wasn't part of the cycling process but nitrates did read 20 ppm a few weeks ago, immediately remedied by a water change. The tank is also heavily planted. I'll definitely consider the hydrogen peroxide. Thanks for the advice.
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post #4 of 5 Old 02-24-2012, 10:27 AM
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I might consider that most domestic water softener's work by removing or preciptating out the minerals calcium and magnesium that cause hard water deposit's to form in pipes and on surfaces such as sinks, and replace these mineral's with sodium salt's which many species of fishes cannot tolerate over extended periods.
Might try using water from outside spigot that perhaps water softener does not affect but with hard alkaline water,,I would not have high hopes for cory's to do well in over the long term.
Panda cory's are particularly sensitive species in my opinion and would fair much better in softer water and temps not much above 75 degrees F.
Some species of cory's such as peppered cory's are much more forgiving to wider range of water condition's .
You could try the extract, and perhaps some dried leaf litter ,driftwood ,with the hard water which would bring some comfort, but if indeed the domestic water softener works as mentioned,,it could be the combination of alkaline water, and sodium content is doing the little fellas in.
When fishes are stressed by enviornment that they find themselves in,they're immune sytem becomes weakened, and they are much more easliy affected by parasites,fungus,and opportunistic bacterial pathogens that their immune system could otherwise fight off .

The most important medication in your fish medicine cabinet is.. Clean water.

Last edited by 1077; 02-24-2012 at 10:31 AM.
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post #5 of 5 Old 02-24-2012, 11:26 AM Thread Starter
I'm inclined to agree with you about the combination of sodium and alkaline water and that pandas are sensitive, which is the reason why I have not gotten more pandas to build his school up. He will be the last panda I have until I find a source of naturally soft water. It would seem that, since I do have a sodium-based water softener, I probably should not keep catfish. >.<

For now, he is in his own hospital tank with Stress Coat and Kordon Fish Protector and I'm hoping to get him to eat some kanamycin-laced fish flakes to help ward off further bacterial infection. I do have Seachem Kanaplex I can use if necessary but any minocycline or tetracycline-based meds will be next to useless because of the high pH.

Again, thanks for your advice and insight.
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