SO, I followed a guys how to videos on YouTube for the longest time. He did a 4 in. sugar fine (smallest grain size of Nature's Ocean) DSB on a 90g with two MP40's. His sand doesn't blow around the tank. I followed this and made a 4 in. sandbed with the same in my 165g. All I have right now in the tank, as far as powerheads, are two Koralia EVO 1400's. They have blown the sand into suspension and it's just a huge cloud where I can't even see the rocks. I plan on getting two MP40's in the future. How can I stop this? Should I just do a layer of heavier sand on top?

Also, not all fairy or flasher wrasses burrow into the sand so you could go with those also instead if you want to be 100% sand free.

