CaribSea Super Naturals Midnight River 5 lb Aquarium Substrate
CaribSea Super Naturals Midnight River is a dark, natural-looking aquarium substrate designed to enhance the colors of freshwater fish, shrimp, snails, and live plants. Its deep black and gray gravel blend creates a bold riverbed appearance while adding contrast and depth to planted aquariums, nano tanks, and aquascaped freshwater setups.
The smooth, aquarium-safe grains are gentle on bottom-dwelling fish such as corydoras, loaches, and plecos. Midnight River is pH neutral and designed not to alter aquarium water chemistry when used as directed, making it a versatile substrate choice for community tanks, planted aquariums, shrimp tanks, and decorative aquascapes.
Key Features
- Bold Dark Riverbed Look: Deep black and gray gravel tones create strong contrast in freshwater aquariums.
- Enhances Fish Color: Dark substrate helps bright fish, shrimp, and live plants stand out.
- Smooth & Fish-Safe: Gentle on corydoras, loaches, plecos, shrimp, snails, and bottom-dwelling species.
- Plant Friendly: Provides a stable base for live plants and aquascaping layouts.
- pH Neutral: Designed not to alter aquarium water chemistry when used as directed.
- Pre-Washed: Helps make aquarium setup faster and easier.
- 5 lb Bag: Ideal for nano tanks, small aquariums, or decorative top layers.
Product Details
- Brand: CaribSea
- Collection: Super Naturals
- Product: Midnight River Aquarium Substrate
- Size: 5 lb bag
- Color: Dark black and gray gravel blend
- Grain Size: Approximately 1–3 mm smooth gravel
- Water Chemistry: pH neutral
- Best For: Nano tanks, planted aquariums, shrimp tanks, community tanks, and aquascapes
Best For
- Nano aquariums
- Small freshwater tanks
- Betta aquariums
- Shrimp tanks
- Snail tanks
- Corydoras aquariums
- Loach aquariums
- Pleco setups
- Planted aquariums
- Dark natural riverbed aquascapes
Coverage Guide
As a general guide, plan on approximately 1 pound of substrate per gallon for a shallow 1-inch substrate bed. A 5 lb bag is best for nano aquariums, small tanks, decorative top layers, or accent sections in larger aquascapes.
Actual coverage can vary depending on tank dimensions, desired substrate depth, hardscape placement, and aquascaping style.
Setup Tips
Although Midnight River is pre-washed, rinsing before use can help reduce initial cloudiness. Add water slowly over a plate, bowl, or plastic bag to avoid disturbing the gravel bed. Allow filtration to clear any remaining fine particles before adding livestock.
For planted aquariums, use root tabs or a nutrient-rich base layer for heavy root-feeding plants.
Why Choose CaribSea Midnight River?
CaribSea Super Naturals Midnight River is a great choice for aquarists who want a darker, natural-looking substrate that makes fish and plants pop. The black and gray gravel blend creates a realistic riverbed style while giving the aquarium a clean, polished look.
The smaller 5 lb size is especially useful for nano tanks, shrimp tanks, betta aquariums, planted bowls, decorative top layers, and accent areas in larger freshwater aquascapes.
Frequently Asked Questions
Does CaribSea Midnight River make fish colors stand out?
Yes. The dark substrate creates contrast, helping colorful fish like tetras, mollies, guppies, bettas, shrimp, and live plants stand out more clearly.
Is Midnight River safe for bottom feeders?
Yes. The smooth grains are safe for many bottom-dwelling fish, including corydoras, loaches, and plecos, when used properly.
Will Midnight River change my pH?
No. CaribSea Super Naturals Midnight River is pH neutral and designed not to alter aquarium water chemistry when used as directed.
How much does a 5 lb bag cover?
A 5 lb bag is best for nano tanks, small aquariums, decorative top layers, or accent areas. For a shallow 1-inch substrate bed, plan on about 1 pound of substrate per gallon.
Can Midnight River be used in planted tanks?
Yes. It provides a stable base for live plants and aquascaping. For heavy root-feeding plants, use root tabs or a nutrient-rich base layer.
Should I rinse Midnight River before use?
Yes. Even though it is pre-washed, rinsing before use can help reduce initial cloudiness.
Available at Tropical Treasures Wyo
Shop CaribSea Super Naturals Midnight River 5 lb Aquarium Substrate online or in-store at Tropical Treasures Wyo in Cheyenne, Wyoming. This dark natural aquarium gravel is a great choice for nano tanks, planted aquariums, shrimp tanks, corydoras setups, loach aquariums, pleco tanks, and freshwater aquascapes.
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