Hardscape – Ultum Nature Systems

HARDSCAPE

STICKS AND STONES
Building Blocks For Aquascaping

Arguably one of the most important essentials of aquascaping, hardscape material lays down the groundwork for planted tanks. Making sure to choose quality hardscape is essential when planning a successful planted aquarium as it can help shape everything from aquatic plant choice to livestock options. Our extensive lineup of wood and rock hardscape is sure to cover any aquarium project, whether it calls for a mesmerizing forest or lush mountainside aquascape.

ROCK

Ancient

Forms naturally as various minerals accumulate over centuries, resulting in distinctive horizontal stripes, color variations, and a captivating shimmer when illuminated. Its versatile nature allows for the creation of various aquascapes through stacking and manipulation.

Ancient Pagoda

Known for its rugged shape and weathered texture, is a sought-after aquascaping stone that can give your tank a naturally ancient appearance. Its unique character and style make it a rare find in the US due to its sourcing challenges.

Ancient Petrified Wood

Formed by the layering of minerals over centuries, boasts distinctive horizontal striations and captivating color shifts. This versatile stone can be stacked and arranged to craft various aquascapes.

Arbor

A unique and characterful aquarium hardscape with an orange/reddish-brown color, white streaks, and a smooth, craterous appearance. It's ideal for creating cave-like structures that offer cover for small fish and invertebrates in your aquarium.

Ash

A versatile and striking hardscape element with a smooth gray and tan texture and creased detailing. Its holes (1-3 inches) are perfect for shrimp hiding spots and plant foundations. In aquascaping, it adds depth, realism, and tranquility, whether used to create natural riverbeds or as unique focal points. Stones vary in shape and size, typically ranging from 3 to 10 inches.

Black Lava

A porous hardscape, ideal for aquarium setups, especially planted tanks. It's great for attaching plants, promoting beneficial bacteria growth, and adding character to your aquascape.

Black Lava Cave

Black Lava Rock is a versatile and porous stone used in various aquarium setups. These pre-drilled pieces provide hiding spots for fish, opportunities for easy plant attachment, and create a habitat for beneficial bacteria, contributing to a healthier aquarium.

Black Lava Mound

These Black Lava Rock mound pieces feature pre-cut holes for added character, resting places for small fauna, and plant attachment points. Mix and match these pieces with regular Black Lava Rock to create your ideal aquascape.

Black Mountain Seiryu

A darker variation of the popular Seiryu stone, featuring a deep grey, almost blueish tone. Its craggy texture and intricate details make it ideal for crafting natural-looking aquascapes.

Black River Slate

A less common hardscape choice in the planted aquarium hobby. These dark gray to black flat stones are versatile for creating cave structures, paths, or as a base for intricate driftwood layouts.

Black Slate

An aquascaping stone with deep black and grey hues, suitable for stacking, creating structures, caves, and pathways in aquariums. It's also perfect for attaching aquarium mosses for added aesthetics.

Black Star

A type of aquarium hardscape rock that has a rounded shape and a smoother texture than other lava rocks

Blood

Features a smooth, glossy texture and a rich red color, making it a striking addition to any planted aquarium. Its bold aesthetic creates a visually stunning underwater landscape. Versatile for various setups, Blood Stone is perfect for rock formations and gentle enough for tanks with delicate fish.

Blue Seiryu

A striking and darker bluish-grey version of the well-loved Seiryu stone. It features attractive white veins, making it a standout choice for aquascaping with colorful aquarium plants.

Boutique Seiryu

A selection of the finest Seiryu stones, featuring the most attractive and detailed pieces handpicked for aquascaping.

Boutique Seiryu Accent

The smallest whole pieces from Boutique Seiryu, are essential for creating lifelike hardscape layouts, adding depth and realism to your aquascape. They are perfect for nano or pico tanks. Boutique Seiryu represents the finest stones, carefully selected for their detail and desirable features, ensuring the highest quality in your aquascape.

Brook

A new aquarium rock with a deep grey tone and white striations, similar to popular stones like Ryuoh and Seiryu. Its jagged texture adds character to the planted aquarium, making it suitable for creating Iwagumi style aquascapes.

Burmese Petrified Wood

A fossilized remains of trees, with organic materials replaced by minerals over millions of years. Sourced from Myanmar, this striking stone is perfect for creating beautiful underwater landscapes in a planted aquarium.

Canyon Rock

Beige to brownish stones that are often used in aquascaping. They are rugged and have layers, which is why they are sometimes called "pagoda". Canyon rocks can slightly harden aquarium water due to their calcium content, but this effect can be counteracted by changing at least 50% of the water per week.

Dark Blue Slate

With its flat profile and deep color, is ideal for aquascaping. It can form a solid base for driftwood, be stacked for canyon effects, or used as an accent. Available in various LB packs, it suits different tank sizes and preferences. Additionally, it's perfect for terrariums, paludariums, and similar enclosures.

Dark Pagoda

Named for its rugged, textured layers formed over thousands of years, is a highly sought-after and unique aquascaping stone, often rare in the US due to sourcing challenges. When used in aquascaping, it can create a dramatic, naturally ancient look and feel in your tank.

Dragon (Ohko)

A beloved choice in the planted aquarium hobby, known for its unique texture resembling dragon scales. This lightweight stone, with its brown to golden yellow tones, contrasts beautifully with green aquarium plants. It's ideal for anchoring plants and mosses and provides shelter for fish and shrimp. Its natural shape suits aquascapes, but it can be broken into smaller pieces for various tank applications.

Dragon Accent

An aquascaping rock known for its unique scale-like texture and a range of colors. Its clay-like composition is ideal for aquatic plants to self-attach, and it won't impact your water chemistry, making it a popular choice for aquarium layouts.

Elephant Skin

Also known as Seegebirge Stone, is a popular aquascaping material with a unique texture and light color tone. It features a soft, rounded appearance and is ideal for aquariums with delicate-finned livestock.

Fire

A warm-toned, textured aquascaping stone that works well for creating rock-based layouts or as a foundation for driftwood. Its serrated texture provides attachment points for aquatic plants and mosses.

Gobi Desert

A smooth-textured aquarium hardscape with a light grayish-cream color and distinct layered patterns. Ideal for canyon-style aquascapes, it enhances the colors of aquarium plants, fish, and shrimp.

Goliath

A versatile aquarium stone that can be used for many aquascaping styles. It has a mix of brown and grey tones and a textured surface that's good for the greening method. Goliath stone is more rounded than other popular aquascaping stones, making it a good choice for planted tanks with livestock that have sensitive fins.

Grey River Slate

These flat stones are ideal for stacking, gluing together, or providing stability under driftwood layouts. They can also be used for paths and accented with aquatic mosses like Riccia, Pellia, and Fissidens.

Hakkai

Also known as Pa-Hai Stone, is a rare and sought-after aquascaping stone, distinguished by its unique blue, grey, and green hues. Its smooth, rounded shape and natural grooves, earned it the nickname "Bug Eaten Stone." Highly coveted, this stone is rare due to years of natural erosion, making it perfect for river-style aquariums and Iwagumi layouts. It pairs well with delicate aquatic plant species for a serene aquascape.

Icelandic Lava

A relative of Lava Rock, offers a porous yet slightly denser texture with added detail and character, making it ideal for mountain-style aquascapes and popular styles like Iwagumi and Pond-style layouts. Its rough surface is great for attaching moss and epiphytic plants.

Jade

A unique and eye-catching hardscape with vibrant emerald green and light orange-red speckling. Perfect for creating distinctive aquascapes and adding a touch of color to your aquarium, it's an ideal choice for those looking to stand out in the planted tank hobby.

Lagoon

A porous aquarium hardscape with a variety of colors, including grey, white, and black. Its rough texture is perfect for attaching mosses and epiphytic plants, but it should be used with care in tanks with sensitive-finned fish like Betta.

Manten

A highly sought-after aquascaping stone with rugged edges, unique textures, and natural color tones, making it ideal for creating realistic planted aquarium layouts. Its various cracks and textures are perfect for adding aquarium moss and the greening technique to enhance the tank's character and maturity.

Maple Leaf

A reddish-brown hardscape with a unique web-like texture, creating vivid color contrasts in a planted aquarium.

Marsh

Similar to Hakkai Stone, is a versatile, light grey aquarium hardscape with hints of cream and white. Its rounded yet grooved texture makes it ideal for attaching mosses and epiphytic plants, making it suitable for classic Iwagumi layouts or as a base for driftwood in community freshwater tanks.

Mountain

A lightweight and porous aquascaping stone, perfect for attaching mosses and epiphytic plants. Its jagged shape allows for easy stacking, making it ideal for creating cliff-style aquascapes.

Petrified Wood

Is formed when trees or plants are fossilized over millions of years, with their organic material replaced by minerals, resulting in a beautiful stone.

Prism

A visually striking aquarium hardscape featuring a mix of white, cream, orange, and brown hues, making it ideal for aquascapes that stand out. Its rounded edges and smooth surfaces ensure compatibility with delicate aquatic life, and it comes in various sizes for diverse applications in your tank.

Red Lava

A porous aquascaping stone commonly used in planted and African Cichlid tanks. Its porosity allows for use in aquarium filtration, providing surface area for beneficial bacteria to colonize.

Red Petrified Wood

A unique hardscape featuring the fossilized remains of wood with a distinctive red hue, textured appearance, and grain patterns reminiscent of the original tree. Ideal for creating canyon and mountain-style aquascapes, it adds a touch of natural beauty to your aquarium.

Red Slate

An aquarium-safe, pre-soaked, and artistically chosen metamorphic rock that won't affect water pH or hardness. Its unique shapes and sizes are handpicked for an eye-catching aquarium layout.

Rhino

A premium-quality stone with a neutral grey tone and versatile design, making it ideal for a wide range of aquascaping styles and aquatic plants. Its natural texture and shape allow for the creation of various underwater landscapes.

Sand

A hardscape with a weathered appearance and layers, creating the effect of aged stone. Its yellowish cream color provides an attractive backdrop for aquatic plants and animals, making it perfect for canyon-style aquascapes.

Striped River

A smooth, rounded stone with a striated pattern of white, grey, brown, and orange tones, lending it a natural look. Its texture is ideal for planted aquariums housing delicate fish. It's also perfect for river-style aquascape layouts, especially when paired with simple aquatic plant species. Its natural appearance complements aquatic plant foregrounds or cosmetic sand.

White Elephant Skin

A variation of Elephant Skin Stone, a rare stone with a texture similar to elephant skin. White Elephant Skin Stone is a mix of cream and beige tones, while Elephant Skin Stone is usually gray. Both types of stone are heavily textured with indentations.

Wolf

An aquarium hardscape with a jagged texture, varying color tones, and porous surface, making it great for attaching aquatic plants and promoting beneficial bacteria growth. It pairs well with mosses and other aquatic plants, offering an aged and balanced look for your aquarium.

WOOD

Amazon

A driftwood suitable for various aquatic setups. Its unique appearance, safety, and adaptability make it an ideal choice for both aquariums and terrariums.
SIZE:
S - 4-9"
M - 9-16"
L - 15-21"

Amazon Basin

The latest aquarium driftwood with a textured surface that's a combination of Pacific Wood, Mopani, and Grape Wood. It's ideal for attaching aquatic rhizome plants and offers a natural look with knots and grooves.
SIZE:
S - 10-14"
M - 12-16"
L - 20"+

Black Forest Spider

A unique twist on traditional driftwood with its distinctive black coloration, providing a fresh and distinctive look for your aquarium setup. Add a touch of the exotic to your aquascape with this uncommon hardscape choice.
SIZE:
S - 4-10"
M - 7-15"

Blistered Sticks

A distinct and uncommon hardscape for planted aquariums. Their straight, bumpy texture makes them ideal for forest-style aquascapes or creating the appearance of fallen trunks in different tank sizes, adding a touch of uniqueness to your aquarium.
SIZE:
19-23"

Cholla Sticks

Made from the dried husk of the Cholla Cactus, is an ideal addition to shrimp tanks, providing shelter and promoting bio-film growth, which serves as a food source. It can also be used to attach various plants and create a natural-looking sunken log in your aquarium.
SIZE:
4"
6"

Cholla Tunnel

Ideal shrimp shelter, encourages biofilm, perfect for attaching moss and plants for a natural sunken log look in your aquarium.
SIZE:
4"
6"
12"

Cork Bark

Recognizable by its rugged dark gray outer surface and smooth bright orange inner side. It varies in thickness, typically under 12 inches, and is one of the lightest woods for vivarium use, making it great for stacking without risk of collapse.
SIZE:
BULK BY WEIGHT

Dragon

An aquarium driftwood that resembles Dragon Ohko Stone, featuring natural pores and holes ideal for attaching aquarium mosses and epiphytic plants like Anubias, Java Fern, and Bucephalandra without the need for glue or thread. It provides an intriguing hardscape element for aquascaping.
SIZE:
XS - 3-8"
S - 7-13"
M - 11-16"
L - 14-20"
XL - 18-24"

Driftwood Stumps

A stable foundation for your aquascaping, ideally suited for foreground placement, and can be adorned with moss for added visual appeal.
SIZE:
XXS - 2-4"
XS - 3-6"
S - 18-24"
M - 5-8"
L - 7-12"

Forest

adds texture and character to your planted aquarium with deep grooves and crevices. It suitable for different tank sizes, and features brown and beige hues that complement vibrant aquatic plants. This driftwood is great for attaching mosses and epiphytic plants.
SIZE:
S - 6-10"
M - 9-13"
L - 12-16"
XL - 17-21"
2XL - 23-29"

Ghost

Ideal for vivariums, terrariums, and aquariums, this sandblasted driftwood starts pale but darkens in the tank, revealing a smooth texture and varied shapes. It may slightly soften water and release tannins.
SIZE:
S - 8-10"
M - 14-16"
L - 18-24"
XL - 30-40"
2XL - 48"

Grape

A unique driftwood perfect for planted setups or crafting, often used as a centerpiece. It adds character with twists and knots, and it's aquarium-safe, though its light color may darken over time in a tank.
SIZE:
S - 10-12"
M - 18"
L - 24"

Grape Wood Hollow Log

A distinctive driftwood with twists and knots that provide texture to your aquarium. It's safe for aquarium use and has a lighter color tone that can darken naturally when submerged.
SIZE:
M - 10-14"
L - 17-24"

Knitted Logs

Long textured branches that enhance planted aquarium scapes, ideal for forest-style layouts. They may initially float and slightly discolor the water due to tannins, but these effects diminish with soaking and regular maintenance.
SIZE:
18-22"

Log

It features long, straight, and bark-covered textures, making it ideal for forest-style aquascapes or representing fallen trees in riverbend setups. It's safe for aquarium use and suitable for structural reinforcement or supporting heavy hardscapes.
SIZE:
15"

Malaysian

An aquascaping material that offers numerous options for creating a natural environment in your aquarium. Whether you want to attach moss, Anubias, or Buce, this wood provides a canvas for your creative ideas.
SIZE:
XS - 3-6"
S - 5-9"
M - 7-12"
L - 11-16"
XL - 15-20"

Manzanita

Known for its branchy structure, instantly enhances the natural feel of your aquarium. It's pre-cleaned and ready for use, whether you want to create a moss tree or let it stand on its own.
SIZE:
S - 8-10"
M - 10-15"
L - 15-20"
XL - 20"+

Mopani

A popular hardwood used in aquariums for its aesthetic value. It's a two-colored African wood that's dense and hard, with a smooth surface and textured detail. Mopani driftwood sinks immediately in aquariums, won't rot, and can be used to place plants like anubias and bucephalandra.
SIZE:
BULK BY WEIGHT

Pacific

Also known as Horn Wood, is a versatile and easy-to-handle natural driftwood that's great for creating unique aquascapes in nano aquariums. Its grooves are ideal for growing epiphytic aquatic plants, and its rich brown tone contrasts well with various plant species. The smoother texture makes it a safe choice for delicate-finned livestock like Betta Fish.
SIZE:
XS - 5-8"
S - 6-12"
M - 10-16"
L - 14-20"
XL - 18-24"

Spider

A driftwood known for its wild, root-like appearance, featuring twists, turns, and knots. It serves as an eye-catching centerpiece or pairs well with smaller stones to enhance aquascapes.
SIZE:
BULK BY WEIGHT
S - 4-8"
M - 8-12"
L - 12-20"

Spider Slate

Solved the issue of floating Spider Wood with pre-attached natural slate stone bases. These aquarium-safe pieces are designed to sink the wood, and the slim slate can be covered with substrate or displayed alongside additional slate for a fuller aquascape.
SIZE:
S - 7 X 11 X 9"
M - 10 X 9 X 13"
L - 21 X 11 X 13"

Tangled Tree Root

Offers intricate branching patterns and is perfect for creative aquascaping, especially in nano tanks or as accent pieces. Remember to boil or soak the wood to prevent floating and make it easier to work with in your aquarium.
SIZE:
6-8"

Thorn

A distinctive aquarium driftwood with a straight profile and thorn-like branches. It's best for larger tanks with ample space to showcase its unique features.
SIZE:
BULK BY WEIGHT
18-25"

Tiger

An ideal centerpiece driftwood for aquariums, offering the appearance of an underwater tree with its intricate roots and varying brown tones. Its unique structure provides shelter for fish and fry.
SIZE:
XXS - 4-6"
XS - 7-13"
S - 11-13" X 8-10"
M - 17-20" X 14-16"
L - 18-20" X 15-18"
XL - 20-24" X 13-16"
2XL - 20-22" X 20-24"
3XL - 22-24" X 22-24"

Tree Root

A miniature underwater tree with a compact vertical branching pattern. It's pre-cleaned and can initially float, so we recommend soaking or boiling to make it waterlogged for easier scaping. A heavy rock can also be used to weigh it down.
SIZE:
8-12"

BONSAI

Bonsai 1

SIZE:
S, M, L

Bonsai 2

SIZE:
S, M, L

Bonsai 3

SIZE:
S, M, L

Bonsai 4

SIZE:
S, M, L

Bonsai 5

SIZE:
XS, S, M, L

Bonsai 6

SIZE:
S, M, L, XL

Bonsai 7

SIZE:
S, M, L, XL

Bonsai 8

SIZE:
S, M, L, XL, 2XL

Bonsai 9

SIZE:
S, M, L

Bonsai 10

SIZE:
S, M, L

Bonsai 11

SIZE:
S, M, L

Bonsai 12

SIZE:
S, M, L

Bonsai 13

SIZE:
S, M, L

Bonsai 14

SIZE:
S, M, L

Bonsai 15

SIZE:
S, M, L

Bonsai 16

SIZE:
S, M, L

Bonsai 17

SIZE:
XS, S, M, L, XL

Strata Pro

Strata Pro 5 Type 1

SIZE:
11.02" X 7.08" X 7.87"
COMPATIBILITY:
5N / 5S / 5E

Strata Pro 5 Type 5

SIZE:
11.02" X 7.08" X 7.87"
COMPATIBILITY:
5N / 5S / 5E

Strata Pro 5 Type 10

SIZE:
11.02" X 7.08" X 7.87"
COMPATIBILITY:
5N / 5S / 5E

Strata Pro 5 Type 16

SIZE:
11.02" X 7.08" X 7.87"
COMPATIBILITY:
5N / 5S / 5E

Strata Pro 45 Type 1

SIZE:
14.96" X 9.05" X 9.84"
COMPATIBILITY:
45U / 45S / 45E

Strata Pro 45 Type 2

SIZE:
14.96" X 9.05" X 9.84"
COMPATIBILITY:
45U / 45S / 45E

Strata Pro 45 Type 3

SIZE:
14.96" X 9.05" X 9.84"
COMPATIBILITY:
45U / 45S / 45E

Strata Pro 45 Type 4

SIZE:
14.96" X 9.05" X 9.84"
COMPATIBILITY:
45U / 45S / 45E

Strata Pro 45 Type 5

SIZE:
14.96" X 9.05" X 9.84"
COMPATIBILITY:
45U / 45S / 45E

Strata Pro 45 Type 6

SIZE:
14.96" X 9.05" X 9.84"
COMPATIBILITY:
45U / 45S / 45E

Strata Pro 45 Type 7

SIZE:
14.96" X 9.05" X 9.84"
COMPATIBILITY:
45U / 45S / 45E

Strata Pro 45 Type 8

SIZE:
14.96" X 9.05" X 9.84"
COMPATIBILITY:
45U / 45S / 45E

Strata Pro 45 Type 9

SIZE:
14.96" X 9.05" X 9.84"
COMPATIBILITY:
45U / 45S / 45E

Strata Pro 45 Type 10

SIZE:
14.96" X 9.05" X 9.84"
COMPATIBILITY:
45U / 45S / 45E

Strata Pro 45 Type 11

SIZE:
14.96" X 9.05" X 9.84"
COMPATIBILITY:
45U / 45S / 45E

Strata Pro 45 Type 12

SIZE:
14.96" X 9.05" X 9.84"
COMPATIBILITY:
45U / 45S / 45E

Strata Pro 45 Type 13

SIZE:
14.96" X 9.05" X 9.84"
COMPATIBILITY:
45U / 45S / 45E

Strata Pro 45 Type 14

SIZE:
14.96" X 9.05" X 9.84"
COMPATIBILITY:
45U / 45S / 45E

Strata Pro 45 Type 15

SIZE:
14.96" X 9.05" X 9.84"
COMPATIBILITY:
45U / 45S / 45E

Strata Pro 45 Type 16

SIZE:
14.96" X 9.05" X 9.84"
COMPATIBILITY:
45U / 45S / 45E

Strata Pro 45 Type 17

SIZE:
14.96" X 9.05" X 9.84"
COMPATIBILITY:
45U / 45S / 45E

Strata Pro 60 Type 1

SIZE:
22.83" X 11.02" X 11.81"
COMPATIBILITY:
60U / 60S / 60E

Strata Pro 60 Type 2

SIZE:
22.83" X 11.02" X 11.81"
COMPATIBILITY:
60U / 60S / 60E

Strata Pro 60 Type 3

SIZE:
22.83" X 11.02" X 11.81"
COMPATIBILITY:
60U / 60S / 60E

Strata Pro 60 Type 4

SIZE:
22.83" X 11.02" X 11.81"
COMPATIBILITY:
60U / 60S / 60E

Strata Pro 60 Type 5

SIZE:
22.83" X 11.02" X 11.81"
COMPATIBILITY:
60U / 60S / 60E

Strata Pro 60 Type 6

SIZE:
22.83" X 11.02" X 11.81"
COMPATIBILITY:
60U / 60S / 60E

Strata Pro 60 Type 7

SIZE:
22.83" X 11.02" X 11.81"
COMPATIBILITY:
60U / 60S / 60E

Strata Pro 60 Type 8

SIZE:
22.83" X 11.02" X 11.81"
COMPATIBILITY:
60U / 60S / 60E

Strata Pro 60 Type 9

SIZE:
22.83" X 11.02" X 11.81"
COMPATIBILITY:
60U / 60S / 60E

Strata Pro 60 Type 10

SIZE:
22.83" X 11.02" X 11.81"
COMPATIBILITY:
60U / 60S / 60E

Strata Pro 60 Type 11

SIZE:
22.83" X 11.02" X 11.81"
COMPATIBILITY:
60U / 60S / 60E

Strata Pro 60 Type 12

SIZE:
22.83" X 11.02" X 11.81"
COMPATIBILITY:
60U / 60S / 60E

Strata Pro 60 Type 13

SIZE:
22.83" X 11.02" X 11.81"
COMPATIBILITY:
60U / 60S / 60E

Strata Pro 60 Type 14

SIZE:
22.83" X 11.02" X 11.81"
COMPATIBILITY:
60U / 60S / 60E

Strata Pro 60 Type 15

SIZE:
22.83" X 11.02" X 11.81"
COMPATIBILITY:
60U / 60S / 60E

Strata Pro 60 Type 16

SIZE:
22.83" X 11.02" X 11.81"
COMPATIBILITY:
60U / 60S / 60E

Strata Pro 60 Type 17

SIZE:
22.83" X 11.02" X 11.81"
COMPATIBILITY:
60U / 60S / 60E