2-Pack Aquarium Plant Substrate Cups – Aquatic Root Base

Grow Beautiful Aquatic Plants with Nutrient-Rich Substrate Cups

Give your aquarium plants the stable, nourishing foundation they need with these aquatic plant substrate cups. Made from grass carbon enriched with mud and sand, each cup delivers the essential nutrients your water plants need to thrive — while adding a clean, natural look to your aquascape. This set includes 2 black cups in two sizes (5 cm and 7 cm) to accommodate a variety of aquatic plant species.

Key Features

• Nutrient-Rich Grass Carbon Material: Crafted from grass carbon combined with mud and sand to supply vital nutrients directly to plant roots.
• Secure Bottom Placement: Simply soak in water for a few minutes — the cups settle firmly at the aquarium floor, keeping plants anchored and upright.
• Two Sizes Included: One 5 cm and one 7 cm cup accommodate different plant sizes and root systems.
• Elegant Black Design: The sleek black color complements any aquarium décor, enhancing the visual appeal of your planted tank.
• Easy to Use: Insert your aquatic plants or water grass into the cup, place it in your tank, and let nature do the rest.
• Versatile Application: Ideal for planting and fixing water grass, moss, stem plants, and other aquatic greenery.

Specifications

• Material: Grass carbon (mud and sand composition)
• Color: Black
• Sizes: 5 cm / 7 cm
• Package Contents: 2 substrate cups
• Country of Origin: Made in Mainland China

Perfect For

Whether you're a beginner aquascaper or a seasoned hobbyist, these substrate cups make it easy to create lush, vibrant planted tanks. Use them in freshwater aquariums, nano tanks, or decorative fish bowls to keep your aquatic plants beautifully positioned and well-fed.

Notes

• Due to manual measurement, please allow a tolerance of 1–3 mm.
• Actual product color may vary slightly from screen images due to monitor settings.

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Frequently Asked Questions

Q: How do I use these aquarium plant substrate cups in my fish tank?

A: Simply insert your aquatic plant or water grass into the substrate cup, then soak the cup in water for a few minutes. Once saturated, place the cup at the bottom of your aquarium — it will settle firmly in place, anchoring your plant securely while providing nutrients to the roots.

Q: What size aquatic plants are these substrate cups suitable for?

A: This 2-pack includes one 5 cm cup and one 7 cm cup, making them suitable for a range of aquatic plants, from small mosses and grass to larger stem plants. The two different sizes give you flexibility when arranging your aquascape.

Q: Are these substrate cups safe for fish and other aquarium inhabitants?

A: Yes. The cups are made from natural grass carbon material (mud and sand composition) and contain no high-concern chemicals, making them safe for use in aquariums with fish, shrimp, and other aquatic life.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.