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Old September 16th, 2011, 10:27 AM
cell cell is offline
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Join Date: Oct 2008
Location: Montreal, QC
Posts: 586
if you had a un-cycled filter and added all those fish it was more then likely an ammonia spike. Sometimes you can see the fish gills are bright red instead of reddish-pink from irritation. you will need to change 20-40% of the water daily until it calms down. You should use dechlorinated water or let the new water sit 24hr before putting it in the tank if you have a filter.
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