zorba Posted February 13, 2015 Report Share Posted February 13, 2015 Hi Has anyone heard, uses this device? Comes in different models for different inhabitants of the tank Any opinions? The manufacturer claims that they help contain algae I was thinking to try one in my shrimp tank Thanks Link to comment Share on other sites More sharing options...
buck Posted February 13, 2015 Report Share Posted February 13, 2015 i know there a rip of of twinstar thats about it Link to comment Share on other sites More sharing options...