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Return pumps, wavemakers, gyres
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In community tanks
Chosen by aquarists
465 matching items · Most used first
Substrates & AquascapingUltum Nature Systems
The Ancient Wood Showpiece (AW03) is a one-of-a-kind WYSIWYG driftwood piece with a dense profile and heavily weathered texture; approx. 35x25.5x11 inches. Ideal for aquariums, terrariums, and paludariums; leaches tannins and floats initially, so soaking is recommended.
0 showcased tanks
Substrates & AquascapingUltum Nature Systems
The Ancient Wood Showpiece (AW04) is a one-of-a-kind WYSIWYG driftwood piece with a dense profile and heavily weathered texture; approx. 37x15x12 inches. Ideal for aquariums, terrariums, and paludariums; leaches tannins and floats initially, so soaking is recommended.
0 showcased tanks
Substrates & AquascapingUltum Nature Systems
The Ancient Wood Showpiece (AW05) is a one-of-a-kind WYSIWYG driftwood piece with a dense profile and heavily weathered texture; approx. 33x23x10.5 inches. Ideal for aquariums, terrariums, and paludariums; leaches tannins and floats initially, so soaking is recommended.
0 showcased tanks
Substrates & AquascapingUltum Nature Systems
The Ancient Wood Showpiece (AW06) is a one-of-a-kind WYSIWYG driftwood piece with a dense profile and heavily weathered texture; approx. 34.5x10.5x18 inches. Ideal for aquariums, terrariums, and paludariums; leaches tannins and floats initially, so soaking is recommended.
0 showcased tanks
Substrates & AquascapingUltum Nature Systems
The Ancient Wood Showpiece (AW07) is a one-of-a-kind WYSIWYG driftwood piece with a dense profile and heavily weathered texture; approx. 34.5x9x9 inches. Ideal for aquariums, terrariums, and paludariums; leaches tannins and floats initially, so soaking is recommended.
0 showcased tanks
Substrates & AquascapingUltum Nature Systems
The Ancient Wood Showpiece (AW08) is a one-of-a-kind WYSIWYG driftwood piece with a dense profile and heavily weathered texture; approx. 34.5x19.5x12 inches. Ideal for aquariums, terrariums, and paludariums; leaches tannins and floats initially, so soaking is recommended.
0 showcased tanks
Substrates & AquascapingUltum Nature Systems
The Ancient Wood Showpiece (AW09) is a one-of-a-kind WYSIWYG driftwood piece with a dense profile and heavily weathered texture; approx. 33.5x18x18 inches. Ideal for aquariums, terrariums, and paludariums; leaches tannins and floats initially, so soaking is recommended.
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SupplementationUltum Nature Systems
The Aquarium Suction Cups are marine-grade suction cups with removable snap-on clips for securing aquarium airline and CO2 tubing snug against glass or acrylic tank walls; built-in clips pop off for use as clean, direct glass-to-glass mounts for glass lily pipes. 5, 10, and 20 packs.
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Substrates & AquascapingUltum Nature Systems
The Arbor Stone is an unconventional natural aquarium hardscape stone with a unique nugget-shaped form, numerous circular holes and craters, and a warm orange and reddish-brown color palette; perfect for intricate, cave-like structures offering cover for small fish or invertebrates, and suitable for terrariums and paludariums.
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Substrates & AquascapingUltum Nature Systems
The Ash Stone is a versatile natural aquarium hardscape stone with a sophisticated palette of soft gray and tan tones, smooth surface texture with creased detailing, and natural holes for shrimp and small fish hiding spots; can anchor aquatic plants and works as a weathered accent in terrariums and paludariums.
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Substrates & AquascapingUltum Nature Systems
The Ashen Stone is a natural aquarium hardscape stone and one of the lightest-colored stones available, maintaining pale off-white to gray tones even when wet, with occasional subtle streaks of rusty orange; stands out beautifully when paired with a dark substrate or lush plants, and suitable for terrariums and paludariums.
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Substrates & AquascapingUltum Nature Systems
The Assorted Accent Wood is a multitasker of aquascaping driftwood chunks; mixed shapes and textures allow stacking, wedging, and building stable foundations, filling gaps, creating layered depth, or balancing a dominant focal point. Sold in packs and sizes from Extra Small to Large.
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Substrates & AquascapingUltum Nature Systems
The Assorted Rock Box is a blind-box style assortment of natural aquarium hardscape stones; each box includes varying sizes, shapes, and rock types perfect for experimenting, practicing layouts, or adding unique accent pieces to an aquascape. One rock type per box. 10LB and 20LB boxes.
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Tank & FurnitureUltum Nature Systems
The Ultum Nature Systems Atomizer Mist Maker Kit is an ultrasonic fogger for freshwater paludariums and aquariums with emergent aquatic plants, producing a fine cool mist that boosts humidity and creates a jungle-like atmosphere without raising water temperature. It includes the mist maker, power adapter, three diffusion plates, a changing key and a splash guard, and has automatic low-water shutoff (minimum 0.5-inch depth).
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SupplementationUltum Nature Systems
The Base Holder - Disposable CO2 Cartridge is a simple, heavy-duty holder that keeps standard 90g disposable threaded CO2 cartridges perfectly upright, organized, and safe during routine tank maintenance. Grey and White.
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Substrates & AquascapingUltum Nature Systems
The Basin Wood - Large is a natural aquarium driftwood centerpiece, 20+ inches long, prized for its exceptionally high-detail surface of deep grooves, tight knots, and weathered twists; provides natural planting pockets for epiphytes, surface area for beneficial bacteria, and a mature, ancient look.
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Substrates & AquascapingUltum Nature Systems
The Basin Wood - Medium is a natural aquarium driftwood piece, 12-16 inches long, prized for its exceptionally high-detail surface of deep grooves, tight knots, and weathered twists; provides natural planting pockets for epiphytes, surface area for beneficial bacteria, and a mature, ancient look.
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Substrates & AquascapingUltum Nature Systems
The Basin Wood - Small is a natural aquarium driftwood prized for its exceptionally high-detail surface, deep grooves, tight knots, and weathered twists; provides natural planting pockets for epiphytes like Anubias and Bucephalandra, surface area for beneficial bacteria, and a mature, ancient look. Single, 5 Pack, and 10 Pack.
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Tank & FurnitureUltum Nature Systems
The Bio Bowl Terrarium Kit is a DIY terrarium kit with essential basics to create a successful planted setup, including an adjustable integrated LED light with 3 brightness levels and 3 preset timer options, substrate, sphagnum moss, and Seiryu accent stones; hobbyist chooses plants and hardscape. Bowl 175 and Bowl 200 sizes.
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Tank & FurnitureUltum Nature Systems
The Bio Cylinder Terrarium Kit is a DIY terrarium kit with essential basics to create a successful planted setup, including an adjustable integrated LED light with 3 brightness levels and 3 preset timer options, substrate, sphagnum moss, and Seiryu accent stones; hobbyist chooses plants and hardscape. Cylinder 150 and Cylinder 200 sizes.
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Substrates & AquascapingUltum Nature Systems
The Black Lava Rock is a highly porous natural aquarium hardscape rock for planted tanks and African Cichlid setups; color palette from black to gray. Millions of tiny holes provide massive surface area for beneficial bacteria; coarse texture is perfect for anchoring mosses, ferns, and epiphytic plants. available in a 15LB size.
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Substrates & AquascapingUltum Nature Systems
The Black Lava Rock Cave is an extremely porous natural aquarium hardscape stone with a pre-drilled cave, ideal for small cave-dwelling animals such as crayfish and plecostomus; acts as a massive biological filter with ample space for beneficial bacteria. Small, Medium, Large, and XL sizes.
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Substrates & AquascapingUltum Nature Systems
The Black Lava Rock Mound is an extremely porous natural aquarium hardscape stone, dark black and remarkably lightweight, with multiple pre-cut areas; acts as a massive biological filter and provides safe resting spots for small fauna and perfect pockets for attaching epiphytic plants like Anubias, Bucephalandra, or mosses.
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Substrates & AquascapingUltum Nature Systems
The Black Ridge Stone brings a rugged, natural look to aquarium hardscapes with dark gray, charcoal, and earthy brown tones; heavily weathered surface defined by pronounced ridges, grooves, and layered formations. Natural variation makes it well-suited for organic, uneven hardscape appearances. 30LB pack.
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Substrates & AquascapingUltum Nature Systems
The Black River Slate is a natural aquarium hardscape rock with a black to dark grey color with occasional brown and white streaks; semi-round water-worn shape for authentic river or lake-inspired aquascapes, waterfalls, or spawning media. Suitable for terrariums and paludariums. 5LB to 30LB packs.
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Substrates & AquascapingUltum Nature Systems
The Black Slate is a natural aquarium hardscape rock with rich black and gray tones accented by subtle white streaks; relatively flat with great stacking potential, perfect for layering or building structures in an aquascape. Excellent base for mosses; wrap varieties around it for moss-covered pieces. 5LB to 30LB packs.
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Substrates & AquascapingUltum Nature Systems
The Black Star Lava Rock is a highly porous volcanic aquarium hardscape rock; unlike jagged lava rock, it features a smoother, rounded pebble-like shape ideal for fish with delicate fins. Massive surface area for beneficial bacteria; perfect for anchoring mosses, Anubias, and Bucephalandra. 5LB to 30LB packs.
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Substrates & AquascapingUltum Nature Systems
The Blistered Driftwood Sticks are a natural aquarium hardscape wood with long, straight profiles and a distinctive, bumpy bark texture; position vertically to mimic submerged reed beds and flooded forest roots, or lay across the tank base to recreate fallen timber along a riverbed. Great for wedging epiphytic plants like Bucephalandra or tying on mosses. Single, 5 Pack, and 10 Pack.
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Substrates & AquascapingUltum Nature Systems
The Blood Stone is a rich red natural aquarium hardscape stone, one of the smoother varieties for aquascaping; deep red hue contrasts beautifully against plants and substrate. Smooth surface is gentle for tanks housing fish with delicate fins; striking accent for terrariums and paludariums. 10, 20, and 30 pound packs.
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Substrates & AquascapingUltum Nature Systems
The Blue Mountain Seiryu Stone is a darker, bluish-grey natural aquarium hardscape stone with striking white veins; signature craggy texture and intricate details for natural-looking mountainous hardscapes or Iwagumi layouts. Contrasts beautifully with vibrant green or red plants. 5LB to 30LB packs.
0 showcased tanks