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Re: [APD] Sudden death of all the healthy yamato shrimp

This is the 2nd time it happened on this tank. I did not realize that oxygen could be the problem. 

In fact the water outlet of the canister filter is just 3cm below the waterline. I assume that it should provide enough surface agitation. Besides, this is a non CO2 tank.

I was told that too much surface agitation can oxidize the fertilizers we used.
Is that true ?

I will increase the light output and install a spraybar.
Thank Liz.

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