09-13-2012, 04:30 PM
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Originally Posted by evanlundberg4
So I did a water change last night in my saltwater tank. I pre mixed my water the day before and I added a water treatment as well. Before I changed my water I also put a heater and a spare power head in the buckets, tested my water for correct pH and salinity. I figured that there would obviously be some disturbance in my tank with this project but this morning I woke up and my two damselfish had changed to a darker color and were laying on the bottom looking like they were gasping. Things got worse - they started swimming erratically and were getting blown around by the power heads. When I came home from work one was laying on the bottom and he ended up dying. Now the other one is drinking around the surface. I have no idea what I could've done. I put an air stone in to aerate the water. My firefish seems to be alright...eating, swimming normally. Anyone have any idea what is wrong?
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what are your parameters?it sounds like ammonia poison.