Steve,
Scientific studies or no scientific studies, I will NEVER, EVER again scrub valonia off my rocks. When I did so repeatedly in my 42g hex, when it was running, the valonia in the tank ended up taking over to the point where it was everywhere.
As a result of my personal experiences with this invasive, ugly pest, I now remove affected rocks from the tank and excise the rock surrounding the valonia, as well as the valonia. This PITA effort has erradicated valonia in two of my tanks, and reduced it to almost none in the third tank.
|