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CaribSea Super Naturals Peace River 20 lb Aquarium Substrate

CaribSea Super Naturals Peace River brings a natural riverbed look to freshwater aquariums with a warm mix of tan and brown grains. This smooth, natural substrate creates a realistic streambed-style base while helping tropical fish, shrimp, snails, live plants, driftwood, and aquarium decor stand out beautifully.

Peace River is an inert freshwater aquarium substrate designed not to alter pH, hardness, or water chemistry when used as directed. Its rounded texture makes it a strong choice for community aquariums, planted tanks, shrimp tanks, corydoras-friendly layouts, loach aquariums, and natural aquascapes.

Key Features

  • Natural Riverbed Look: Warm tan and brown tones mimic the appearance of natural streambeds.
  • Smooth Rounded Texture: Suitable for many bottom-dwelling fish, shrimp, and snails when used properly.
  • Inert Substrate: Designed not to alter pH, hardness, or water chemistry when used as directed.
  • Plant Friendly: Provides a stable base for rooted aquarium plants and aquascaping layouts.
  • Great for Community Tanks: Works well in peaceful freshwater aquariums with compatible fish and invertebrates.
  • Pre-Rinsed: Helps reduce setup mess, though a light rinse is still recommended before use.
  • 20 lb Bag: Practical size for medium aquariums, planted layouts, and larger aquascape sections.

Product Details

  • Brand: CaribSea
  • Product: Super Naturals Peace River
  • Size: 20 lb bag
  • Grain Size: 1–2 mm rounded natural pebbles
  • Color: Warm tan and brown mix
  • Water Chemistry: Inert; will not alter pH or hardness when used as directed
  • Best For: Freshwater aquariums, planted tanks, shrimp tanks, community tanks, and natural aquascapes

Best For

  • Freshwater community aquariums
  • Planted aquariums
  • Shrimp tanks
  • Snail tanks
  • Corydoras and loach-friendly layouts
  • Natural biotope-style aquariums
  • Riverbed aquascapes
  • Layering with other natural CaribSea substrates

Plant Benefits

CaribSea Peace River provides a stable substrate base for rooted aquarium plants. While it does not contain added plant nutrients, its small rounded grain size helps plants anchor in freshwater aquascapes.

For heavy root-feeding plants such as swords, crypts, and vallisneria, pair this substrate with root tabs or a nutrient-rich base layer for best results.

Coverage Guide

A 20 lb bag provides approximately 1.5–2 inches of coverage in many standard 20 gallon aquariums, depending on tank footprint, desired substrate depth, hardscape placement, and aquascaping layout.

For larger tanks, deeper substrate beds, or heavily planted aquariums, multiple bags may be needed.

Setup Tips

  • Although pre-rinsed, a light rinse before use can help reduce fine dust and initial cloudiness.
  • Add substrate before filling the aquarium with water.
  • Pour water slowly over a plate, bowl, or plastic bag to avoid disturbing the substrate bed.
  • Use root tabs for heavy root-feeding plants.
  • Vacuum lightly during maintenance to avoid disturbing plant roots or aquascape layers.

Substrate Blending Ideas

Peace River blends beautifully with other natural CaribSea substrates such as Crystal River, Sunset Gold, and Zen Garden. Mixing or layering similar natural tones can create depth, pathways, riverbank effects, and custom aquascape designs.

Why Choose CaribSea Peace River?

CaribSea Super Naturals Peace River is a great choice for aquarists who want a warm, natural substrate that looks realistic without appearing artificial. The tan and brown color blend works well with driftwood, river stones, live plants, schooling fish, shrimp, and peaceful community setups.

The 20 lb size is especially useful for planted tanks, community aquariums, natural biotope-style layouts, and medium freshwater aquarium builds.

Frequently Asked Questions

Do I need to rinse Peace River before using it?

It comes pre-rinsed for convenience, but giving it a light rinse before adding it to your aquarium can help remove fine dust and improve clarity during setup.

Is Peace River suitable for planted tanks?

Yes. Peace River provides a stable base for rooted plants. For best results with heavy root-feeding plants, use root tabs or a nutrient-rich base layer.

Will Peace River change my pH or hardness?

No. Peace River is inert and is not intended to alter aquarium pH, hardness, or water chemistry when used as directed.

Is Peace River safe for corydoras, loaches, and shrimp?

Yes. The smooth rounded grains are suitable for many bottom-dwelling fish, shrimp, and snails when used properly.

Can I mix Peace River with other CaribSea substrates?

Yes. Peace River blends well with Crystal River, Sunset Gold, Zen Garden, and other natural aquarium substrates for custom aquascapes.

How much substrate do I need?

A 20 lb bag provides about 1.5–2 inches of coverage in many standard 20 gallon aquariums. Larger tanks or deeper substrate beds may require multiple bags.

Available at Tropical Treasures Wyo

Shop CaribSea Super Naturals Peace River 20 lb Aquarium Substrate online or in-store at Tropical Treasures Wyo in Cheyenne, Wyoming. This natural tan and brown freshwater substrate is a great choice for community aquariums, planted tanks, shrimp habitats, corydoras-friendly layouts, and realistic riverbed aquascapes.


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