Guest Mike and Linda Posted October 6, 2010 Share Posted October 6, 2010 I was just curious I bought a Calico ranchu from Big Als in ottawa and I will put him in a 10 gal for QT for a Full 30 days. I learnt my lesson. I used a sponge filter to cycle the tank. What I want to know is when can I put the sponge filter back into the 40 gallon? 0 Quote Link to comment Share on other sites More sharing options...
Regular Member redfish Posted October 6, 2010 Regular Member Share Posted October 6, 2010 I think if your QT is cycled you can remove the sponge filter. But I'm not sure about putting it back into your big tank until you are sure the newbie doesn't have anything that can be passed. 0 Quote Link to comment Share on other sites More sharing options...
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