09-06-2011, 09:38 AM
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Originally Posted by Nubster
Lost an oto and another neon. Down to 3 neons...started with 11. Now it looks like the three remaining have ick. I'm wondering if that's what is killing most of them at this point. They are probably so stressed and weak that the ick is getting them and killing them so fast they don't even have time to show the white spots. I am going to stop by the LFS tomorrow on the way home and grab a new tank (Petco is having their $1 a gallon sale right now) for hospital/quarantine duties. Also...I might try the salt/heat method but if I have to resort to meds, and I have to treat the remaining two otos, any suggestions on what meds are safe for them and if I have to treat the main tank, what will be safe for future additions of shrimp to the tank?
The ich is likely secondary, as the black neon in the photo previously posted did not have ich but more likely columnaris as Barb suggested. Ich attacks when fish are weakened or under stress, which is why it is so common with new fish.
The best ich treatment is raising the heat plus Coppersafe. Salt also works but characins are particularly sensitive to salt so this is only going to add more stress. Coppersafe is a better treatment with soft water fish. Raise the tank temp to 85F and add one dose of Coppersafe (1 teaspoon per 4 gallons of water--water, not tank size). I always do a water change immediately prior to treatment with CS since the water change dilutes the CS and one treatment is sufficient without. I keep the temp raised for a week; I raise and lower it naturally by adjusting the heater. After the week, do a water change; I usually wait 10 days. I do not re-dose CS.
Do not use plant fertilizer (another reason for the water change before treatment) as the additional copper can be detrimental. It may affect invertebrates (snails); some of my small snails certainly made it through treatment, though I thought they were fewer afterwards.
The above is safe to use after treating with Maracyn according to Mardel. Normally, treatments should not be combined as certain medications can interact, but Mardel make both products and recommend joint treatments in their instructions.