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hi i got up this a.m. and got ready and went to work.all 9 of my fathead were alive and actively swimming.the only thing i can think of that caused the deaths may be the increase in temp from about 72 to 76F this was beacuse of the aquarium light being on.it never hurt them b4.my temp currently now is about 75F ammonia ooks to be at about .25ppm, but could be between .24 and .50 ppm.tank just started becaus ethey are feeders for my oscar.they are the cycling fish.i think they could also possibly have been over fed becuase if it was the ammonia would the other fish be affect.also the fish are down towards the bottom

If they are new fish to the tank, then they will be affected by ammonia before the other tank inhabitants. The others are most likely being affected, just that they have been in the tank and have tolerated the ammonia from the beginning.
In my opinion it is definately the ammonia that caused their death. What are the other parameters in the tank? Nitrate and Nitrite?

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Before you criticize someone walk a mile in their shoes. That way you're a mile away and you have their shoes.

i do not know i did not check for nitrite or nitrate the tank hasnt even been going for a week. i dont think it is from the ammonia thought i think it is from the large rise and drop in temperature.

Is this the same tank you put salt into. As the tank is new it certainly would not have been cycled also are these fish suitable for cycling a tank?

Have a look in [link=My Profile] http://www.fishprofiles.com/forums/member.aspx?id=1935[/link] for my tank info
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Betta 11Gal Desktop & Placidity 5ft Community Tank Photos

Keith

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Hi,
You have several problems with your tanks and all of them
seem to involve poor water quality as noted by ammonia, and
nitrite readings. These problems increase the stress in
the fish and can result in the weakening of their immune
systems.

http://edis.ifas.ufl.edu/FA005

In this particular case, you might have brought in a few
fish that were infected with a disease. I brought up
the specific fish you have elected to use as feeders.
In essence, they are an excellent fish for that purpose
however, they can come with a bacterial infection that
can even be passed to humans.


http://www.fishbase.org/Diseases/DiseasesSummary2.cfm?discode=11
Note the treatment for this disease.

Frank


-->>> The Confidence of Amateurs, is the Envy of Professionals <<<--

yes its the tank i put salt into.i figured it was from the ammonia but i didnt really know because the light changes the temperature.i do not know if its a good fish to cycle a tank with, but theyre going to be feeders anyway.