There all dying!

Turbo

Im going crazy
Dec 1, 2002
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Minnesota, USA
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Alright, I need some advice. Ive had tropical fish for almost 15 years now but and have never had this problem. Two days ago I was doing a biweekly water change on three tanks that I have in my apartment. Two of them are ten gallons and one is twenty. I use the python to make this process more effecient. I changed about 20-25% of the water while cleaning the gravel. Then filled the tanks back up. The next day(yesterday), I lost eight fish in the community twenty gallon, and twelve in my roomates community ten gallon. My first guess was that something in the water killed them. Possibly I high conentration of chlorine yet I never had the problem with the city water till now. Yet to my amazement, in my ten gallon tank I have guppies with about 30 month old babies, and I didnt lose a single one of them. Now I cant understand why all of the other, older more adapted fish, would die and not the fragile baby guppies. You figure they would kick the bucket first. Anyhow, the fish that I lost in the twenty where all of tiger barbs and red eyed minnow things and no other species. And in the ten gallon I lost all of the neons, save two, and no other species. I cant figure it out. Any imput would be greatly appreciated before I decide to do another partial.
 
Have you tested all your water parameters? Check the Ph of the tanks before and after a water change and tap. Many fish do not tolerate swings in Ph.
 
Did you put anything in your water to ensure there was no chlorine?

Have you tested all your water parameters? Check the Ph of the tanks before and after a water change and tap. Many fish do not tolerate swings in Ph.

I'm sure with 15 year fish keeping expirience that's the first thing he checked for.

Agreeded with wetman, it happens without you knowing unless you check your tap water regularly, happened to me once, lost a few neons, but they are realy picky on the water parameters.
 
The water utility adds Chlorine and Chloroamine (stronger stuff) to the water.

Apparently they started adding some new stuff recently (Chloroamine?). I cant remember whats its called
exactly but a lot of the water treatatment stuff
doesnt remove it.

Talk to your good lfs. They will tell you exactly.

We had an event here in South Australia where a lot
of fish had died all of the sudden in the southern suburbs.

The local utility played dumb but everyone knew they
****ed up somewhere.
 
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