04-29-2013, 07:40 PM
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Originally Posted by Deanna01
The issue that was causing the fish to die is that my husband and I had reversed the hoses on the Eheim filter.
This not only denied the fish oxygen but basically screwed up the entire cycle.
Reversing the hoses may reduce the surfce agitation, (sucking water in the spraybar and out the intake), and, as mentioned, this can be a factor with the overdose of stress coat but it certainly won't screw up the tank's cycle... unless the stress coat can do that... But I don't think so. As long as the surfaces substrate and filter stayed wet the nitrifying organisms will survive fine.
How long had the tank been running successfully with the fish in it when you bought it?
Are there any live plants? With no plants the agitation is far more important.