1. Dec 26, 2013 #1
   Cedar Rapids, IA

   Pygmey Well-Known ReefKeeper

   751

   Cedar Rapids, IA

   Ratings:

   +119 / 1 / -0

   
   I have a 29 gallon coralife biocube. Did not upgrade the return pump yet. I have 1 Korlia 425 pump in there.. I thought it could use some more flow so I added a second Korlia 425 pump.. The sand does not seem to want to settle.. Do I have too much flow in there?
   

    
2. Dec 26, 2013 #2
   Cedar Rapids, IA

   blackx-runner Administrator Website Team Leadership Team

   6,044

   Cedar Rapids, IA

   Ratings:

   +738 / 5 / -0

   Do you have really fine sugar sand in there?
   It could be just where the flow is hitting, I wouldn't think a koralia 425 in that tank would be too much at all. Try moving it around so the flow bounces off something and disperses without blowing around the sand too much. Keep it more towards the top of the tank should help as well.

    
3. Dec 27, 2013 #3
   

   Reefman Inactive User

   1,156

   Ratings:

   +0 / 0 / -0

   How deep is your sand bed? I had that issue so I removed some sand and all is well now... I had about 3-4" before now I have 1.5 to 2"
   
   

    

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