Representative imageBlack pebble
1 lb and 5 lb bags

Rounded stone and mixed pebble. Actual size, finish, and water chemistry must be confirmed for the material you select.
Representative image1 lb and 5 lb bags
Representative image1 lb and 5 lb bags
Representative image1 lb and 5 lb bags
Representative image1 lb and 5 lb bags
A rounded outline is only one thing to know about a pebble. Mineral composition, actual size, finish, and chipped surfaces also matter. River rock and rainbow pebble, white pebble, Santa Clara pebble, and black pebble are distinct materials. A result confirmed for one should not be borrowed to describe another.
Our stone is washed and screened. Actual grading, finish information, and water chemistry are still awaiting confirmation. We do not promise that the material is undyed, unpolished, unwaxed, or chemically inert until those statements are supported. Color is not a shortcut: a light pebble is not automatically marble, and a black one is not automatically neutral.
The MSD Veterinary Manual connects substrate size with fish behavior, including sifting and swallowing. Identify the actual animals before selecting a floor. A stone's longest dimension alone cannot settle whether it could be mouthed, swallowed, or wedged in a gap.
Inspect the real pieces when available. Rounded material can still have a damaged edge. Larger pieces also create spaces that need inspection and cleaning. Keep heavy features supported independently of loose pebble that an animal or maintenance tool might move.
Use the wet and dry views to compare a pale surface, a darker background, or a varied reddish mix. These are representative images, not photographs of a measured batch. They cannot tell you the smallest fragment in a bag or establish an untreated finish.
Once the material suits the intended use, measure the footprint and chosen layer depth. The calculator estimates mass from volume, with an editable starting density. Check the bag mix and box plan together rather than comparing only the price per pound. A few accent stones and a complete floor need different quantities.
Leave access around equipment and along the glass. Decide how debris will be removed from between pieces before adding a thick decorative layer. Read river rock selection, the vinegar test, and stable hardscape for a practical sequence from material checks to ordering.