So as some of you may have read in my other thread ( http://www.myfishtank.net/forum/fre...tion-questions/50256-new-member-new-tank.html ), I took my water to get tested last night and they said it was ready for fish. I picked up 4 neon tetra's and introduced them into my new tank. I was up for about 3 hours while they were in there and they were lively as can be. I wake up this morning to 3 dead ones and one that looks like he'll probably be on his way soon. Did I do something wrong? Or did I get crappy fish? The 3 dead ones are in the freezer and they are going back to Pet Co tonight. On the fish that's still alive, when watching him, it looks like his mouth is going up and down (like he's eating or gasping for air) a mile-a-minute. But if he was gasping for air, wouldn't he be at the top? Also, my water temp is right at 75 degrees.
On a side note: For the past week my filter was so quiet that I had to keep checking it to make sure it was running. I must have bumped it or something last night and now it's noisy as can be. Its like it's sucking air but I made sure all of the pipes were tight so I don't know where it could be sucking air from.
Edit: Should I get something more hardy seeing as how these are the first fish in the tank?
On a side note: For the past week my filter was so quiet that I had to keep checking it to make sure it was running. I must have bumped it or something last night and now it's noisy as can be. Its like it's sucking air but I made sure all of the pipes were tight so I don't know where it could be sucking air from.
Edit: Should I get something more hardy seeing as how these are the first fish in the tank?
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