Whats going on with my corydora!? 😞
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I am no disase expert but this does look like red blotch disease. I gather it is common, so here is Ian Fuller's treatment report.
Treating ‘Red Blotch Condition’ in Corydoradinae
Red blotch is a condition not a disease, secondary infection can and will exacerbate the problem. The most common cause of this condition is a sudden deterioration of the water conditions, i.e. Ammonia, or more likely Nitrite spike. The condition may take 24 hours or a little longer to show in a fish, and in that time the filter system may well have over come it and the condition of the fish is spotted the water can and is often back to normal, but the damage has been done. The condition is not contagious, and each specimen within a group will have differing resistance to it.
Red blotch condition needs to be treated as soon as it is spotted, as any delay will be fatal.. 1. Large water change at least 50% if not more. If kept in a species only tank I would recommend a 75%+ water change. 2. Full dose of Melafix. 3. Add extra air stone with fairly strong flow.
It is also highly probable that this condition affects other armoured Catfishes groups, although I have neither experienced it or treated for it.
Nitrite is also responsible for what is know as "Brown blood" again not a disease but a condition, and this is the result of a high level of exposure to Nitrite, which affects the blood ability to absorb oxygen. The gills of fish suffering with this condition will be a brownish colour, instead of a nice pinkish red. Sometimes this can be fatal, but generally if good water conditions are maintained, over time the fish will recover.
Ian Fuller
Treating ‘Red Blotch Condition’ in Corydoradinae
Red blotch is a condition not a disease, secondary infection can and will exacerbate the problem. The most common cause of this condition is a sudden deterioration of the water conditions, i.e. Ammonia, or more likely Nitrite spike. The condition may take 24 hours or a little longer to show in a fish, and in that time the filter system may well have over come it and the condition of the fish is spotted the water can and is often back to normal, but the damage has been done. The condition is not contagious, and each specimen within a group will have differing resistance to it.
Red blotch condition needs to be treated as soon as it is spotted, as any delay will be fatal.. 1. Large water change at least 50% if not more. If kept in a species only tank I would recommend a 75%+ water change. 2. Full dose of Melafix. 3. Add extra air stone with fairly strong flow.
It is also highly probable that this condition affects other armoured Catfishes groups, although I have neither experienced it or treated for it.
Nitrite is also responsible for what is know as "Brown blood" again not a disease but a condition, and this is the result of a high level of exposure to Nitrite, which affects the blood ability to absorb oxygen. The gills of fish suffering with this condition will be a brownish colour, instead of a nice pinkish red. Sometimes this can be fatal, but generally if good water conditions are maintained, over time the fish will recover.
Ian Fuller
Ammonia would seem to be relevant here, since the fish were recently bagged and if they were together, ammonia would be an issue in the bag. Follow Ian's advice, it certainly cannot hurt.
OP
OP
I can attempt to do everything except for adding melafix atm. Thank you so much!
It never rains but it pours, as the saying goes. I've had similar, in an emergency something doesn't work. Here, you can do a manual W/C if you have a hose and bucket. Do a major change, 70%.
Read Ian's instructions carefully. He says that ammonia can return to normal within 24 hours, and it takes 24 hours for this condition to appear. The ammonia would have been a problem in the shipping bag, not your tank. Corydoras are highly sensitive to all forms of nitrogen, be it ammonia, nitrite or nitrate. Do the W/C. If you can get Melafix, fine, if not, wait. Do not start using salt or anything else, and do not move the fish, that is only more stress.
OP
OP
Ok.
My dad just came back and he got me a valve. I'm doing the W/C now.
I've had a bad experience with melafix when I ised it on my betta years back... I don't trust those "fix" meds...
Neither do I, I will never use Melafix or Primafix. But Ian was questioned on the Melafix and stands by his advice, and he knows more than you or I do, so it's up to you. I'm not sure if this were me, but I might do the major W/C, maybe another tomorrow, and leave it at that.
OP
OP
You got it!
Tomorrow I have our services so I can't do one tomorrow but on Monday I will for sure.
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