I also have one aquarium that has CaribSea Torpedo Beach. I like it. It has a nice appearance and easy cleaningI had a 40 gal. with black gravel. It seemed like in about 5 years of aquarium maintenance (Fishkeeper cleaning gravel) that some of the gravel started turning white. You could sort of see the gravel coating was wearing off.
So when I got rid of this tank and started a new 100+ gal tank I took care in selecting gravel. I finally selected a Caribseas natural gravel.
with it going only into the vacuum cup--swirling with only the dirt going into the vacuum tube, and then the sand quickly settles back to the tank floor. @ LBDave. What color is the Natural Gravel? I am thinking it is various shades of grey. I will look it up. Although I like their product, (Cairibsea)the ads I have seen do not do the appearance justice. The Torpedo Beach is a white with a glow. The colored fish show up nice and go between the white sand and the gray and green gravel in the other half if the tank. The Albino Cories disappear when they are resting on the white Torpedo Beach. When they swim off, it's like ghosts popping into out dimension. Even though it is white sand it really doesn't show dirt and keeps it's appearance as if new.
The Torpedo Beach Sand stays put and doesn't mix with the gravel.
I just received the Sandtastik Sand. I will report on different aspects (maintenance) of it. It is the Classic Green. Natural green in appearance with some light catching highlights.