Cholla Wood: The hollow woody "skeleton" of the cholla cactus. Cholla is a great addition to your aquarium containing plecos and/or shrimp. Wood eating plecos love to rasp on this. Shrimp love to hide and forage off it as well.
**Since cholla comes from the great outdoors, each piece will be unique--so various coloring, knots, curves, etc. should be expected.