no fish in tank and bio?

  • We are currently upgrading MFK. thanks! -neo
Depends....How aged is the tank? An old tank would have a better shot....Just drop a market shrimp in if you need to keep it empty for a while.
 
agree piece of shrimp or something to rot away for amonia ....
 
i would put something in there.... why take the risk of a amonia spike...
 
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