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Need advice to save corys

7759 Views 16 Replies 7 Participants Last post by  iceburg
I've had some False Julii Corydora for about 6 months. After a couple months I noticed some mild barbel erosion on a couple of them but it seemed to stop progressing. Recently it started up again and accelerated very rapidly to the point their barbels are mostly gone and one has a severe lesion (developed over a couple days) where his barbels were and seems to have stopped eating with the others.

After doing more research (which I should have been more thorough with earlier), I know I should not have put them in with my Eco-complete substrate. I feel absolutely terrible about that. Also, the fact that it took a while for erosion to appear but then accelerated so rapidly makes me think there may be some infection involved as well. Some of the reading I've been doing supports that possibility as well.

My first question: is this something they can likely recover from and still have happy lives?

Here's what I've done to try to get a little quick relief for them:
  • Started putting food in small glass dish to reduce scraping and keep the substrate cleaner. They seem to like this
  • Frequent and thorough substrate vacuuming to keep it cleaner
  • Increased water change frequency

I still need to change the substrate and try to treat any potential infections, but I need some advice:

In switching the substrate would it be less stressful for the fish to take them out or try to replace it in-place without removing them? I'm worried about stress weakening them if they are already compromised by infections.

For a new substrate I'm debating between sand or extra fine grain Marfied Controsoil (1mm grain size). I've read really good things about the Controsoil including that it doesn't have an initial ammonia spike like ADA Aquasoil does. Has anyone used it with corys?

Finally, how can I tell if they have an infection that is making it worse and if so what it is so I can try to treat it? I've read that people have seen rapid barbel erosion caused by flukes. How would I diagnose and treat that?

Any advice would help. Thanks!
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Judging by that picture, your not providing a clean healthy environment for your fish. Substrate has nothing to do with it. People who keep spreading this nonsense needs to stop. Its an old myth of the aquarium world and its bogus. Been proven time and time again to be wrong.

The reason most Cory's loose their barbels is due to poor conditions and diet. Your fish is very extreme, I would think that's its a bacterial infection caused by the poor living conditions. You need to do a better job of cleaning your tank and filter. Provide minimum 50% water changes weekly and feed a healthy diet.

I highly doubt throwing meds in the tank at this point is going to do any good, it will likely be to hard on the fish and kill it.

Do any of the fish have Popeye or finrot or cloudy eye? What other tank mates? What size tank, temp?
A full tank shot would really help.
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