12 biocube help

[cuccaro]

I have bought a 12 g biocube and for some reason the sand at the bottom is getting blown all over the placeand building up on my rock it is making a bare spot on bottom of tank I thought I had to much flow so I took out ph and it still is happening. I adjusted return every witch way and no luck any ideas?

 

[saxman]

You can reach in and see if the stock pump has a flow adjustment, or you can add one similar to what comes with the MJ's, or split the return, which will help distribute the flow.
You can re-pump the tank.
You can use a coarser grade of substrate.
I don't have that trouble with any of our "plug-n-play" systems (we have a 12, three 24's and two 28's), but I use either #1 or #3 grade aragonite, which is still fine enuff for most burrowing fish, but "lays down" WAY better than sugar-fine. CC is too coarse tho...it will trap lots of detritus you'll need to vacuum out.
HTH