Join Date: Nov 2006
Location: san antonio texas
It's organic stuff that collects on the surface. like stated above, surface movement. also, you can lay a peice of newspaper the size of your tank on the surface and the gently lift it off after about 2 seconds. it's an old trick killie breeders use in their fry tanks.
Steve irwin- a father, a hero, a memory now. -We'll miss you mate