"Connie" wrote in message
...
Ok - so I successfully cycled my tank, and got new fish. This was 11 days
ago. Well - I got home from work yesterday, and all but one of my fish
were
dead. They were all fine before I went to work (my angel is the only one
left alive). They have been seemingly ok for the last 11 days.

My ammonia did a mini spike up to 2, but I have managed that with water
changes and ammo lock. It was only one day....

What in the world happened??? What could it have been that 3 corys, 2
swords, 2 gourami, and a rubbermouthed pleco all died at the same time,
with
no warnings signs...

My ammonia was 0 - .25 when I found them dead.

Thanks,
Connie


Sorry for your loss :-(

I'm wondering what your nitrite levels were, as the ammonia was dropping
this is the next toxic stage of the Nitrogen Cycle while the tank is
establishing. Having recently lost most of my fish in one of my tanks you
have my sympathy. In my case they died very rapidly down to bad water
quality because the pump had failed while we were on holiday. So if this was
your problem it would most likely explain why they all died together.

Did you get all the fish at once or gradually? I find that adding fish
slowly over a long period reduces the risks to the fish from ammonia and
nitrite spikes as the bacteria adjusts to the fishload as and when it is
added. I also test the water before going out to buy more and if there is
any sign of ammonia or nitrite I put off the shopping trip (or as I have
multiple tanks find another place to put them). This also has the plus of
increasing the length of time I can have the fun of researching and buying
the fish ;-)

I hope you don't give up this hobby - I'm sure that you will have better
luck next time

Gill