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Discussion Starter #1
I bought six neon tetras last Friday and they were dead by Sunday.

It was freezing outside, so I had them put in a second bag, blew air in it and tied it off. Then I put my gloves in the shopping bag and the fish bag between them. I wrapped that up and tied it tight. Then I put that inside another shopping bag.

When I went home, I put the fish bag in a big bowl and poured water from my tank around it, a little at a time. After 30 minutes, I started adding little amounts of my tank water into the fish bag. After an hour, I netted them carefully into the tank. It seemed like the right thing to do at the time, but they all died. Are they that fragile?
 

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From the sounds of your other post, you tried to cycle the tank with guppies and tetras--quite a few if I remember correctly. Tetras are sensitive to water quality, they are not usually a recommended fish to cycle with. I think you tried to cycle the tank with too many fish, did you do water changes? Tank size, stats, and more exact information will help a lot.
 

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Discussion Starter #4
musho3210 said:
we need more information, expessially whether or not the tank was cycled or not
There's a Tanks button under my post with all my information. The tank was already cycled when I added the neon tetras to the tank with the guppies.
 

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Ok, I understand now (sorry). So you cycled the tank with guppies and then added tetras and more guppies and the tetras died. Here is I believe what happened--the tank was barely cycled when you added the tetras, with that many fish in your tank it was considered over-stocked, that combined with the sudden adding of fish led to an ammonia spike which killed the fish. Six gallons is quite little, you are at or above capacity with 6 guppies :)
 
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