Tropical Fish Keeping - Aquarium fish care and resources

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Fishoutofwater 11-23-2012 12:04 PM

Fish keep dying off one by one.
So here's a little history. I bought the Danio's as cycling fish, yes i know i shouldn't have but i was a complete noob at that time. that was back in January. They all survived the cycling process. and a few months after it was fully cycled They've been slowly dying off one by one. It's weird but one will get sick, go to the top left corner of the tank and just stay there until it dies. At the start it will sometimes come out to eat, but after a few days it stops eating. Once that one dies, then the next one starts the same process, never 2 at a time. It's really weird. Parameters are all spot on, the tank is not over stocked at all. There is plenty of filtration and airstones and plants. None of the other fish show ANY signs of anything bad. Just the Danios. I do regular water changes and everything correctly. There are no white spots, no fin rot, no curved spine(except for 1). Nothing, it's like they see one do it and when he dies they want to try it.

SeaHorse 11-23-2012 01:40 PM

I don't know what this is.... I have experienced exactly what you have, with Giant Danios, Leopard Danios, Zebra Danios and I want to call them Coral Danios... a pretty Coral colour. I no longer buy Danios. Hoping someone will fill me in too.
What is your PH? Mine is very high at 8.2. Maybe that is the issue.

Romad 11-23-2012 01:54 PM

Strange that both of you have the same problem with danios which are supposed to be one of the hardier species. I'll be interested to hear what the OPs ph is too.

What is the water temp? And what kind of water conditioner do you use?

Fishoutofwater 11-23-2012 03:28 PM

My pH is 7.9, water temp is 77 and I use Prime. all other specs are in order:

Amm - o
nit - o
nat - 15

it's a 29gal tank.

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