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In community tanks
Chosen by aquarists
5,380 matching items · Most used first
Substrates & AquascapingUltum Nature Systems
UNS Bonsai 002 is a handcrafted aquarium bonsai tree modeled after a classic cedar tree, with a distinct coniferous shape tapering toward the top like a mountain evergreen. Its expansive wide base offers plenty of surface area for attaching aquatic mosses and epiphytic plants, and its porous wood supports beneficial bacteria and biofilm grazing. Available in three sizes.
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Substrates & AquascapingUltum Nature Systems
UNS Bonsai 003 is a large handcrafted double-trunked aquarium bonsai driftwood tree, a premier centerpiece choice for structural depth and balance in planted tanks. It pairs with aquatic mosses and epiphytic plants for a lush ancient twin-stemmed tree look, and its porous wood supports beneficial bacteria and biofilm grazing. Available in three sizes.
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Substrates & AquascapingUltum Nature Systems
UNS Bonsai 004 is styled after a large pine with a sweeping broad base, bringing scale and architectural height to planted aquariums. Its sturdy, balanced foundation keeps it stable during maintenance, and it pairs with aquatic mosses and epiphytic plants like Anubias and Bucephalandra to mimic an evergreen canopy. Its porous wood supports beneficial bacteria and biofilm grazing. Available in three sizes.
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Substrates & AquascapingUltum Nature Systems
UNS Bonsai 005 features a group of similar handcrafted driftwood trees creating a natural multi-trunk effect for a cohesive woodland scene without purchasing multiple trees. It pairs with aquatic mosses and epiphytic plants, and its porous wood supports beneficial bacteria and biofilm grazing. Available in four sizes.
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Substrates & AquascapingUltum Nature Systems
UNS Bonsai 006 is a versatile handcrafted aquarium bonsai tree featuring a curved main trunk and tufted branches, providing structural height and a sense of movement in planted aquariums. It pairs with aquatic mosses and epiphytic plants to create lush cloud-like tufts of greenery, and its porous wood supports beneficial bacteria and biofilm grazing. Available in four sizes.
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Substrates & AquascapingUltum Nature Systems
UNS Bonsai 007 is a handcrafted aquarium bonsai driftwood tree featuring a striking vertical trunk crowned with a distinct triangular canopy, evoking a majestic highland evergreen. It pairs with aquatic mosses and epiphytic plants like Anubias and Bucephalandra to mimic a lush leafy canopy, and its porous wood supports beneficial bacteria and biofilm grazing. Available in four sizes.
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Substrates & AquascapingUltum Nature Systems
UNS Bonsai 008 consists of multiple handcrafted driftwood trees clustered together to resemble a natural grove, making it easy to build a miniature forest scene. It pairs with aquatic mosses and epiphytic plants to create a lush interconnected canopy, and its porous wood supports beneficial bacteria and biofilm grazing. Available in five sizes.
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Substrates & AquascapingUltum Nature Systems
UNS Bonsai 009 is a handcrafted aquarium bonsai tree shaped to resemble a classic fir tree, evoking a timeless evergreen. It is perfect for rugged mountain forest aquascapes or holiday decoration, and pairs with aquatic mosses and epiphytic plants to mimic dense coniferous foliage. Its porous wood supports beneficial bacteria and biofilm grazing. Available in three sizes.
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Substrates & AquascapingUltum Nature Systems
UNS Bonsai 010 is one of the most intricate UNS designs, meticulously shaped and twisted to resemble a mystical dragon for fantasy aquascapes and high-concept layouts. Its extensive surface area provides a perfect scaffold for epiphytes and mosses, and its porous wood supports beneficial bacteria and biofilm grazing. Available in three sizes.
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Substrates & AquascapingUltum Nature Systems
UNS Bonsai 011 is a twin-tree aquarium bonsai driftwood composition pairing a larger primary tree with a smaller one, replicating a mother and sapling duo for a sense of scale and natural harmony. Its tufted branches are designed for attaching moss or epiphytes to create a dense tiered forest look, and its porous wood supports beneficial bacteria and biofilm grazing. Available in three sizes.
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Substrates & AquascapingUltum Nature Systems
UNS Bonsai 012 is a handcrafted aquarium bonsai tree with a thick trunk crowned with dense, tufted branches, conveying strength and maturity as a primary focal point for planted aquariums. It pairs with aquatic mosses and epiphytic plants for a lush canopy-heavy look, and its porous wood supports beneficial bacteria and biofilm grazing. Available in three sizes.
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Substrates & AquascapingUltum Nature Systems
UNS Bonsai 013 is a handcrafted aquarium bonsai tree with a graceful S-shaped trunk that replicates a leaning tree, making a sophisticated aquascape centerpiece. It pairs with aquatic mosses and epiphytic plants like Anubias and Bucephalandra for lush cascading foliage, and its porous wood supports beneficial bacteria and biofilm grazing. Available in three sizes.
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Substrates & AquascapingUltum Nature Systems
UNS Bonsai 014 is a handcrafted aquarium bonsai tree featuring a stout, sturdy trunk supporting a canopy of curved branches, adding structural character to planted aquariums. It pairs with aquatic mosses and epiphytic plants for a weathered, coastal-inspired forest scene, and its porous wood supports beneficial bacteria and biofilm grazing. Available in three sizes.
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Substrates & AquascapingUltum Nature Systems
UNS Bonsai 015 is a handcrafted aquarium bonsai tree with a thick trunk and wide canopy, designed as a centerpiece for forest-themed planted aquariums. It pairs with aquatic mosses and epiphytic plants like Bucephalandra and Anubias to create a dense canopy, and its porous wood supports beneficial bacteria and biofilm grazing. Available in three sizes.
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Substrates & AquascapingUltum Nature Systems
UNS Bonsai 016 is a structured aquarium bonsai tree featuring branches with flat stumps at the ends, handcrafted by artisans for easy, stable placement of aquatic moss or epiphytic plants. Each tree is a unique one-of-a-kind driftwood sculpture that provides a perfect scaffold for lush greenery; its porous surface supports beneficial bacteria and biofilm grazing. Available in three sizes.
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Substrates & AquascapingUltum Nature Systems
UNS Bonsai 017 is a handcrafted aquarium bonsai tree driftwood piece with a wide, expansive canopy and base designed for maximum planting surface area, ideal for a lush forest-like aquascape. Each tree is a unique one-of-a-kind sculpture that pairs with mosses and epiphytic plants; its porous surface supports beneficial bacteria and biofilm grazing. Available in five sizes from extra small to extra large.
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Substrates & AquascapingUltum Nature Systems
UNS Bonsai 019 is a windswept canopy aquarium driftwood tree with a slender trunk and long canopy branches sweeping to one side, handcrafted by artisans to replicate the dramatic effect of high-altitude gusts. It pairs beautifully with aquatic mosses and epiphytic plants to mimic foliage blowing in the breeze, a sophisticated choice for nature-style layouts; use alone or with aquarium stone for a unique aquascape. Each tree is a unique, one-of-a-kind sculpture hand-assembled from natural driftwood. One size (Medium): 11.5 x 6 x 9 in.
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Substrates & AquascapingUltum Nature Systems
UNS Bonsai 020 is a thick-trunked aquarium bonsai tree with tufted branches, handcrafted by artisans to provide a powerful sense of age and stability as a visual anchor for any planted aquarium hardscape. It pairs beautifully with aquatic mosses and epiphytic plants to mimic lush, dense foliage for an old-growth forest scene, and can be used alone or with aquarium stone for a unique aquascape. Each tree is a unique, one-of-a-kind sculpture hand-assembled from natural driftwood. One size (Medium): 12.5 x 4.5 x 9 in.
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Substrates & AquascapingUltum Nature Systems
UNS Bonsai 021 is a sloping, crescent-shaped aquarium bonsai tree, handcrafted by artisans to evoke graceful movement like a wind-swept tree. It pairs beautifully with aquatic mosses and epiphytic plants to mimic a lush, trailing canopy, and can be used alone or with aquarium stone for a unique aquascape. Each tree is a unique, one-of-a-kind sculpture hand-assembled from natural driftwood. Available in XT Small (8.5 x 4.5 x 6.5 in) and Large (15.5 x 8.5 x 12 in).
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SupplementationUltum Nature Systems
The UNS CO2 Cylinder Pro (10LB) is a heavy-duty, premium aluminum gas tank engineered to fuel thriving, high-tech planted aquariums. Built for serious aquascapes, it combines durability, portability, and precise control so your plants get steady carbon dosing for fuller, healthier growth. Features manual on/off twist valve, brushed aluminum construction, substantial 10LB capacity, DOT3AL certification, and universal CGA320 threads. On a 40- to 60-gallon planted aquarium, a 10LB cylinder typically lasts 9 to 12+ months before refilling. Sold empty due to federal transport regulations; must be filled locally before use.
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SupplementationUltum Nature Systems
The UNS CO2 Cylinder Pro 2.5LB is a heavy-duty brushed aluminum gas tank (CGA320) for pressurized CO2 systems in planted aquariums, DOT3AL certified with a manual on/off twist valve and corrosion-resistant finish. It holds 2.5 lbs of CO2, connects to all standard North American CO2 regulators, and is sold empty per federal regulations for local filling.
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SupplementationUltum Nature Systems
The UNS CO2 Cylinder Pro (20LB) is a heavy-duty, premium aluminum gas tank engineered to fuel thriving, high-tech planted aquariums that demand long-term stability and an uninterrupted CO2 supply. Lightweight, corrosion-resistant, and easy to handle, it is ideal for large show tanks, fish rooms, or multi-tank setups. Features manual on/off twist valve, brushed aluminum construction, massive 20LB capacity, DOT3AL certification, and universal CGA320 threads. Sold empty due to federal transport regulations; must be filled locally before use.
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SupplementationUltum Nature Systems
The UNS CO2 Cylinder Pro (5LB) is a compact, heavy-duty aluminum gas tank engineered to give planted-tank hobbyists reliable, long-lasting CO2 delivery without the bulk. Lightweight, corrosion-resistant, and easy to handle in humid cabinet environments, it is the ultimate sweet spot for dedicated pressurized systems. Features manual on/off twist valve, brushed aluminum construction, versatile 5LB capacity, DOT3AL certification, and universal CGA320 threads. On a 29- to 40-gallon planted aquarium, a 5LB cylinder typically lasts 6 to 9+ months before refilling. Sold empty due to federal regulations; must be filled locally before use.
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SupplementationUltum Nature Systems
The UNS CO2 Diffuser breaks CO2 bubbles down into a fine, swirling micro-diffusion mist that plants can absorb far more efficiently, using a specialized white ceramic disc. Its tough polycarbonate construction won't crack or snap like delicate glass diffusers, and the minimalist profile with smooth edges tucks neatly against the glass.
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SupplementationUltum Nature Systems
The UNS CO2 J-Shape Pollen Glass Diffuser merges premium artistic glasswork with high-performance atomization. Its unique J-shape profile wraps tightly and tucks discreetly into aquarium corners. Equipped with a premium high-density pollen-style ceramic disc, it shears raw gas into an ultra-fine mist that stays suspended in the water column longer for maximum plant absorption. Ceramic disc diameter: 2.5 cm. Recommended for 5 to 10 gallon nano and desktop aquariums.
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SupplementationUltum Nature Systems
The UNS CO2 Paintball Adapter in Space Grey attaches your CO2 regulator to a paintball CO2 tank. A built-in pressure relief hole is included for increased safety when removing the adapter from the CO2 cylinder. This listing is for the paintball adapter only; a CO2 regulator is not included.
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SupplementationUltum Nature Systems
The UNS CO2 Paintball Cylinder (16 Oz.) is a lightweight, corrosion-resistant refillable aluminum tank ideal for nano and compact desktop aquascapes. Its ultra-compact 16oz capacity tucks away in desktop stands while delivering a long-lasting carbon supply. Features standard paintball pin valve threading for direct connection to paintball-compatible regulators like the UNS Mini Dual Stage Regulator. Note: cylinders are sold EMPTY due to federal regulations and must be filled locally at a paintball shop, welding supply store, or homebrew supplier.
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SupplementationUltum Nature Systems
The UNS CO2 Paintball Cylinder (24 Oz.) is a lightweight, corrosion-resistant refillable aluminum tank ideal for nano and compact desktop aquascapes. Its 24oz capacity delivers a long-lasting carbon supply while tucking away in small under-tank cabinets. Features standard paintball pin valve threading for direct connection to paintball-compatible regulators like the UNS Mini Dual Stage Regulator. Note: cylinders are sold EMPTY due to federal regulations and must be filled locally at a paintball shop, welding supply store, or homebrew supplier.
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SupplementationUltum Nature Systems
The UNS CO2 Paintball Kit (16oz Cylinder) bundles a refillable 16oz aluminum cylinder with the UNS Mini Dual Stage Regulator for a compact CO2 system ideal for nano to small planted aquariums. It delivers a controlled, constant stream of CO2 to enhance plant coloration, accelerate carpet growth, and keep algae at bay. Includes the 16oz cylinder, dual stage mini CO2 regulator, small CO2 diffuser, and UNS Pro CO2 tubing. Note: cylinders are sold EMPTY due to federal regulations and must be filled locally.
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SupplementationUltum Nature Systems
The UNS CO2 Paintball Kit (24oz Cylinder) bundles a refillable 24oz aluminum cylinder with the UNS Mini Dual Stage Regulator for a complete CO2 system for small to medium planted aquariums. It delivers a controlled, constant stream of CO2 to enhance plant coloration, accelerate carpet growth, and keep algae at bay. Includes the 24oz cylinder, dual stage mini CO2 regulator, medium CO2 diffuser, and UNS Pro CO2 tubing. Note: cylinders are sold EMPTY due to federal regulations and must be filled locally.
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