03-22-2009, 05:12 PM
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Help! Silver Sailfin molly dieing, :(
Hi, so I have a silver sailfin molly that is dieing right now and I have no clue what to do. He's just swimming up in the corner, and still alive but not moving at all, all the other fish are kind of poking him and he doesn't move at all. What do you do? I don't have a quarantine tank.
03-22-2009, 05:29 PM
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1. Size of aquarium (# of gallons) 16 gallons
2. Is your aquarium setup freshwater or brackish water? freshwater
3. How long the aquarium has been set up? about 2 1/2 to 3 months
4. What fish and how many are in the aquarium (species are important to know) three swordtails and 2 silver sailfin mollies, one plecostomus
5. Are there live plants in the aquarium? no
6. What temperature is the tank water currently? 79 degrees
7. What make/model filter are you using? Aqueon Power Filter, I think its a CA10 or CA20, it doesn't say on the manual
8. Are you using a CO2 unit? what is that? I don't think so
9. Does your aquarium receive natural sunlight at any given part of the day? no, but it does have a flourescent light on for the good part of the day
10. When did you perform your last water exchange, and how much water was changed? last night, about a 10 percent water change
11. How often do you perform water changes? every week, I did a fishless cycle for about 3 weeks and never changed the water, than changed the water two weeks ago, and this last week, I did another one yesterday because the nitrate was pushing a little past 40ppm
12. How often and what foods do you feed your fish? I feed them twice a day, mix it up with tropical flakes one day, than spirulina/ algae flakes another, than frozen brine shrimp another
13. What type of lighting are you using and how long is it kept on? flourescent, from 10AM to about 10PM
14. What specific concerns bring you here at this time? one of my silver sailfin molly's is dying
15. What are your water parameters? Test your pH, ammonia, nitrite and nitrate. everything good except nitrate
16. What test kit are you using and is it liquid or test strips? liquid
17. When was the last time you bought a fish and how did they behave while in the pet store tank? I bought these two silver sailfin mollies on Friday, (today is Sunday), they were fine in the tank, they followed your finger everywhere
03-23-2009, 09:42 AM
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Like Twistersmom said, you acclimated the fish well. I also agree, it is better not to add store water to your aquariums; the bucket method works, and avoids adding pathogens and ammonia to your tank. But that's for the future, as I doubt this molly problem comes from something added with the bag water.
I asked about the pH because livebearers prefer alkaline (above pH 7) and it is very stressful for a fish to adjust quickly to a pH that is more than a couple of decimal points different. Your swordtails (also livebearers of course) seem OK, so probably not a pH problem, although there still could have been a marked difference between your tank and the store's water. Something to bear in mind for the future.
Your other water parameters are OK and not likely to be causing this, so as Twistersmom said, wait it out. If the molly is being picked on, are there refuges in the tank where fish can get away from the others? You said there are no live plants, but are there any plastic ones or other decor for "hiding" spots? Plants can often help fish adjust, it gives them a sense of security. If you want to try plants, Vallisneria should do well in alkaline water, and floating fern (Ceratopteris species) although more an acidic water plant, sometimes does well if the water is not too alkaline and it provides wonderful cover.
Keep us posted on developments.
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