I really want one of these but I don't want to rush into things. My lfs says I should be fine with one but I have learned to be wary. My 14 gal biocube has no extra flow, but I should be able to find a good spot with high current. He said to just bury the end in the sand and leave it. Good advice? I feed my tank phytoplankton twice a week and turn the skimmer off for 1/2 to 1 hour. There's usually detritus in the water because my pistol shrimp digs all day. Any info or advice would be much appreciated!