What is happening?? More dead - Page 2 - Tropical Fish Keeping - Aquarium fish care and resources
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post #11 of 20 Old 05-09-2013, 09:27 PM Thread Starter
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Bryon,
Yes it is correct that the dying/dead fish had no external signs of what I thought Columaris is supposed to resemble, except for one neon tetra that had some cottony stuff on its face the day it died. None of the other fish showed this. For the most part, the fish simply started hiding, usually just for a day or even less, before they died, including a young angelfish, the last fish to die. My second young angel, who had been acting perfectly normal while all the other fish were dying started hiding and on Monday. I decided to try Maracyn and Maracyn 2 since all the other people seemed to think I had Columaris. I didn't expect this angel would live BUT the second day of treatment it started perking up and today it is back to behaving almost normally and eating. Through all the other deaths, my 3 cory cats and one oto cat and my cherry shrimp have been fine. What do you think could it be parasites? Would these medications have any affect on parasites? What do you suggest I do? I appreciate your responding as I know you are very knowledgeable. Thanks
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post #12 of 20 Old 05-09-2013, 09:32 PM
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Bryon,
Yes it is correct that the dying/dead fish had no external signs of what I thought Columaris is supposed to resemble, except for one neon tetra that had some cottony stuff on its face the day it died. None of the other fish showed this. For the most part, the fish simply started hiding, usually just for a day or even less, before they died, including a young angelfish, the last fish to die. My second young angel, who had been acting perfectly normal while all the other fish were dying started hiding and on Monday. I decided to try Maracyn and Maracyn 2 since all the other people seemed to think I had Columaris. I didn't expect this angel would live BUT the second day of treatment it started perking up and today it is back to behaving almost normally and eating. Through all the other deaths, my 3 cory cats and one oto cat and my cherry shrimp have been fine. What do you think could it be parasites? Would these medications have any affect on parasites? What do you suggest I do? I appreciate your responding as I know you are very knowledgeable. Thanks
This is not likely a protozoan if the fish are recovering like this from Maracyn. Which only goes to show how difficult it is to pinpoint disease. As this seems to be working, stay with it (= according to the label directions]. Changing course in midstream is not wise. Of course, it may be something else entirely, and just working its way out.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #13 of 20 Old 05-09-2013, 09:36 PM Thread Starter
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Thanks. Do you think I should treat it a second dose? The directions say repeat once if necessary, but I don't know how to determine if it is necessary since the fish are not showing outward signs of anything. I would rather not double treat it. I have started using salt and will continue to do so. Would you agree that is a good idea?
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post #14 of 20 Old 05-10-2013, 10:37 AM
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Thanks. Do you think I should treat it a second dose? The directions say repeat once if necessary, but I don't know how to determine if it is necessary since the fish are not showing outward signs of anything. I would rather not double treat it. I have started using salt and will continue to do so. Would you agree that is a good idea?
If there are signs of improvement in fish behaviour generally, and no visible external signs of anything, I would not do another dose.

Salt in itself is stressful to soft water fish like corys, and angels though perhaps less so. Here again, without evidence of something that needs salt, don't add it. The next partial water change will remove some of this, and so on.

Byron.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #15 of 20 Old 05-13-2013, 04:12 PM Thread Starter
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I have completed the round of Maracyn and Maracyn 2 and the surviving fish seem to be fine but I am noticing my plants look stressed. Many are developing brown spots. Is this normal after the use of these meds?
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post #16 of 20 Old 05-13-2013, 04:38 PM
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I have completed the round of Maracyn and Maracyn 2 and the surviving fish seem to be fine but I am noticing my plants look stressed. Many are developing brown spots. Is this normal after the use of these meds?
Yes. I have had Maracyn kill some species, my pygmy chain swords melted. Other plants survived OK. Which plants were affected?

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #17 of 20 Old 05-13-2013, 04:47 PM Thread Starter
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It is mainly my java ferns that are getting lots of brown spots.
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post #18 of 20 Old 05-13-2013, 05:39 PM
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It is mainly my java ferns that are getting lots of brown spots.
This is likely the Maracyn. Water changes will remove it (if the fish are OK now). Nothing else is necessary, return to your normal schedule of light/fertilizer and the plants should recover. New leaves are the test, if they appear normal; existing leaves won't improve.

Byron.

Byron Hosking, BMus, MA
Vancouver, BC, Canada

The aquarist is one who must learn the ways of the biologist, the chemist, and the veterinarian. [unknown source]

Something we all need to remember: The fish you've acquired was quite happy not being owned by you, minding its own business. If you’re going to take it under your wing then you’re responsible for it. Every aspect of its life is under your control, from water quality and temperature to swimming space. [Nathan Hill in PFK]
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post #19 of 20 Old 05-13-2013, 08:23 PM Thread Starter
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Thanks as always Bryon!
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post #20 of 20 Old 05-15-2013, 08:24 AM
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Just read an article that said columnaris can be external or internal. The treatment you used and the properly medicated food mentioned by Byron are proper courses of treatment for both forms. Glad you were able to get control of things.

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