HI IM NEW 2 KEEPING FISH, BUT A FRIEND OF MINE HAS BEEN 4 TWENTY YEARS, A WEEK A GO HE NOTICED PIN SIZED WHITE DOTS RISING OUTA OF THE BOTTOM OF HIS TANK , WHEN THEY GET 2 THE WATERLINE THEY TURN IN 2 VERY FINE WORMS, ANY OFFF YOU NICE PEOPLE ANY IDEAS WHAT THEY ARE
THANK YOU