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GOBLOX001001
04-14-2010, 3:35 PM
The other day i bought a dalmatian lyretail molly for my nephew.
He as a 10 gallon tank that currently has 1 leopard guppy and another molly of some kind.
His water parameters were fine, can't remember what they were exactly but they were perfect.
The new molly seemed fine at first but the next day it was just laying on the bottom of the tank. After I saw that, I moved it to a 5 gallon container with a filter, heater, and air stone. I added some aquarium salt to the container thinking it might just be over stressed. It will come up for food and swim around sometimes but mostly stays on the bottom of the tank. It looks fine except it keeps its dorsal fin down.
I was just hoping someone here could give me an idea of what to do.

Thanks in advance.

cellodaisy
04-14-2010, 3:54 PM
How long have you had the new molly? How did you acclimate it to the new tank? Did you notice any aggression between the fish? Can you retest the water? "Perfect" readings would be 0 ammonia, 0 nitrite, 0 nitrate, which seems like it would be easy to remember, so I'm guessing they weren't quite perfect.

GOBLOX001001
04-14-2010, 4:02 PM
? "Perfect" readings would be 0 ammonia, 0 nitrite, 0 nitrate, which seems like it would be easy to remember, so I'm guessing they weren't quite perfect.

good point. ammonia was 0ppm and so was nitrite. nitrate was around 10 ppm. i can't test the water again. i did a 50% water change after moving the other fish to one of my other tanks.

There were no signs of aggression. He has only had the fish since Monday.

cellodaisy
04-14-2010, 4:08 PM
Well... I guess I'd just keep up with frequent water changes to keep the water as pristine as possible. If you don't see any other symptoms, it could just be the stress of moving to a new tank. Hopefully some of the more experienced members will chime in.

bradlgt21
04-14-2010, 4:45 PM
It could just be stress. Some fish get afraid of the new lights and movement and settings and just hide on the bottom. They will get used to it over time.

Another possibility is he has something wrong, it could even be internal parasites and you wouldn't know unless you observed him for a period of time. Hence why so many of us use QT tanks. You moved him to a 5 gallon with heater, filter, and air stone. Thats where he should have gone when you got him home. When your new into this stuff you learn from situations like this. Luckily your stock isn't big in case they all get sick. Next time put him in that tank by himself for a few weeks to make sure he is healthy, whenever you get a new fish your risking the health of your current residents if you don't esure the new fish is 100% healthy by keeping him by himself for a month. I know it's hard but the wait will save the lives of all your current fish if something goes wrong.

GOBLOX001001
04-14-2010, 4:57 PM
i usually quarantine my fish. i had to give up that 5 gallon qt which i was gonna use for my new shrimp.

The fish is now slightly on its side. so i'm not sure what that means exactly. It will still swim if it needs, so it isnt dead i'm still just unsure of the situation.

bradlgt21
04-14-2010, 5:00 PM
I was going to suggest swim bladder disease but laying on it's side is pretty much just dying regadless of what is wrong. The tank you put him in did it have used filter media? If it's a filter you just grabbed out of a drawer or bucket and set up then it wouldnt' be cycled. He might be getting high levels of ammonia right now.

Ianne
04-14-2010, 5:19 PM
I would like to give the guess maybe its pregnant :D
but i would say its more of an adjustment thing usually as time goes on and hiding places make it feel comfortable but molly dont usually hide lol

GOBLOX001001
04-14-2010, 6:36 PM
I'm using an established filter on the qt.

J double R
04-15-2010, 12:55 AM
How long have you had the new molly? How did you acclimate it to the new tank? Did you notice any aggression between the fish? Can you retest the water? "Perfect" readings would be 0 ammonia, 0 nitrite, 0 nitrate, which seems like it would be easy to remember, so I'm guessing they weren't quite perfect.


0-0-0 would present an issue, as unless there is a heavy plant stock, it would be indicative of a lack of denitrifying bacteria.

XanAvaloni
04-15-2010, 1:23 AM
Questions: Does the molly swim strangely? In particular, with its head up and the rest of its body hanging down at an angle? Does he swim with a sort of motion like he's paralized, sort of throwing his rear body from side to side rather than flipping his tail? Also, when you look at it from above, does it appear to be extremely thin behind the head?

I don't know if this disorder has an official name but I call it Molly Wasting Disease. I've had several come down with it and only managed to save one. The only things I can suggest are, first, if you can find antiparasite or anti-worm medication, try that. If not or in addition, try to up the salt in the QT tank beyond what you already have it. And feed-- heavily --since it's by itself and there aren't other fish in the tank to steal the food. Feed the same amount at a time you normally would but oftener. Five or six times a day are not too many.

Rotate foods if you have multiple sorts: flake, then bloodworms, then brine shrimp then flake again, etc. (those just happen to be what I have at the moment). Blanched soft vegetables are good too and you can use leftovers from dinner with any sauce washed off.

The ones I lost to this disorder, sorry to say, came down with it shortly after being brought home from the lfs. The one I saved I think got worn out from excessive breeding. She's still alive but has never regained a lot of vigor. I traded off my other mollies recently but kept her; I figure after what she's been through she's allowed to have a dignified retirement any way she likes. :)

Good luck to you and your nephew with your fish. Sorry not to have better news but I hope things turn out well.

cellodaisy
04-15-2010, 2:43 AM
0-0-0 would present an issue, as unless there is a heavy plant stock, it would be indicative of a lack of denitrifying bacteria.

Oops... I'll just pull my foot out of my mouth and stand over here so the real experts can help. Sorry.

GOBLOX001001
04-15-2010, 11:03 AM
unfortunately the molly passed last night. Thanks for all the help, I guess it was just one of those random things that happens. :huh:

KarlTh
04-15-2010, 12:01 PM
0-0-0 would present an issue, as unless there is a heavy plant stock, it would be indicative of a lack of denitrifying bacteria.

But it would also indicate no ammonia source, no fish. If there are fish in a tank that's 0-0-0, then either it's only just been set up, or there are sufficient plants to use up the nitrate produced.

Usual issue with mollies IME is water which is too soft.