Fish Tank Rock: Cliff Rock

Cliff Rock earns its name. As the limestone wears down, bands of iron are left behind, and the stone ends up looking like a tiny cliff face with ledges and ridges. That detail is why it is very attractive in aquariums. Set in an aquarium, a few pieces make a scene with real depth.

Limestone with iron bands

The look of Cliff Rock comes from the way it weathers. The limestone wears away, and the iron band formations remain as raised lines across the stone.

Every piece has a different pattern. Turn each one in your hands and look at it from the angle your tank will be viewed from.

Building an aquarium layout

Aquarium layouts usually start with one main stone and a few smaller supporting pieces. Stack and lean them so the bands run in the same direction, the way layers run in a real cliff.

Bring the inside measurements of your tank and tell staff what you keep in it. They can help you choose pieces that fit the space and the use.

Buying fish tank rock

You pick your own pieces at the yard, and the stone is sold by weight, so you buy only what the tank needs. Call (916) 363-4239 to check that Cliff Rock is on hand before you come.

Mid Valley Rock also carries Honeycomb fish tank rock and other specialty stone.

Popular uses

• Aquarium centerpieces
• Stacked ledges in fish tanks
• Tabletop and container displays
• Small accent pieces in a garden bed