Caribsea Super Naturals Midnight River

CaribSea pre-washed Super Naturals are designed with your success and ease of use in mind. Sizes and colors have been carefully selected to help you create a natural underwater environment like those of the Amazon River blackwaters or Asian jungles. These inert products will not affect your ph or alkalinity, allowing you to adjust these important water quality parameters any way you wish. Can be used in marine aquariums when alkalinity and pH are properly maintained.

Typical Size: 1.0 – 4.0mm
Average Density: 93 pounds per cubic foot

20 lb & 40 lb bags are a heavy weight item and do not qualify for free shipping.