All tank decor

Caves, hideouts, wrecks, castles, silk planting and substrate — sized for betta tanks up through community setups.

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A colorful Ameliade 12-piece aquarium decoration set featuring a broken barrel cave and various artificial plastic plants.
A colorful Ameliade 12-piece aquarium decoration set featuring a broken barrel cave and various artificial plastic plants.
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Ameliade 12-Piece Aquarium Decor Set: Barrel Cave & 11 Colorful Plastic Plants

$7.99
A colorful 8-piece set of Ameliade artificial aquarium plastic plants and a rock cave decoration for fish tanks.
A colorful 8-piece set of Ameliade artificial aquarium plastic plants and a rock cave decoration for fish tanks.
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Ameliade 8-Piece Artificial Aquarium Plant & Rock Cave Decor Set for 5+ Gallon Tanks

$7.88
A 16-piece BOYIEENTER aquarium decoration set featuring colorful artificial plastic plants and a smooth fish cave rock.
A 16-piece BOYIEENTER aquarium decoration set featuring colorful artificial plastic plants and a smooth fish cave rock.
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BOYIEENTER 16-Piece Aquarium Decor Set with Artificial Plants & Fish Cave Rock

$7.98
A gray resin castle aquarium decoration with arched entrances, surrounded by eight green and purple artificial aquarium plant
A gray resin castle aquarium decoration with arched entrances, surrounded by eight green and purple artificial aquarium plant
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CousDUoBe 9-Piece Gray Resin Castle & Plants Aquarium Decor Set

$17.99
An ancient castle aquarium decoration set with a bubbler and seven artificial green plants in a fish tank.
An ancient castle aquarium decoration set with a bubbler and seven artificial green plants in a fish tank.
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CousDUoBe Ancient Castle Aquarium Decor Set with 7 Plants, 8 Items Total

$16.98
Black 5-inch EMUTOL aquarium underground tunnel with two entrances, partially buried in substrate, in a fish tank.
Black 5-inch EMUTOL aquarium underground tunnel with two entrances, partially buried in substrate, in a fish tank.
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EMUTOL 5″ Aquarium Underground Tunnel, Dual-Entrance Fish Tank Cave for Betta & Shrimp

$8.59
Small fazhongfa Star Wars AT-AT Walker resin aquarium decoration with fake moss details, suitable for fish tanks.
Small fazhongfa Star Wars AT-AT Walker resin aquarium decoration with fake moss details, suitable for fish tanks.
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fazhongfa Walker Robot Resin Aquarium Decor for Betta & Goldfish, 5.9-Inch

$17.99
A dark brown, textured FISHNOSH aquarium cave, designed to look like natural driftwood, placed in a fish tank corner.
A dark brown, textured FISHNOSH aquarium cave, designed to look like natural driftwood, placed in a fish tank corner.
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FISHNOSH 1-Count Aquarium Cave Decor, Natural Wood-Like Fish Hideout for Tanks

$19.99
A brown, textured resin tree trunk aquarium decoration with multiple holes, providing a hiding spot for small fish.
A brown, textured resin tree trunk aquarium decoration with multiple holes, providing a hiding spot for small fish.
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Fnaumdol Small Rustic Tree Trunk Betta Cave Aquarium Decor for Fish Tanks

$8.99
A brown resin hollow tree trunk aquarium ornament with three openings, designed for fish to hide and play.
A brown resin hollow tree trunk aquarium ornament with three openings, designed for fish to hide and play.
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JIH Hollow Tree Trunk Aquarium Ornament for Betta Fish & Guppies, Natural Resin Wood Decor

$7.99
A blue ceramic shell-shaped hideout for an aquarium, designed for betta fish and other small aquatic creatures.
A blue ceramic shell-shaped hideout for an aquarium, designed for betta fish and other small aquatic creatures.
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Litewoo Blue Ceramic Shell Hideout for Betta Fish & Small Aquariums

$13.99
A detailed, multicolor Raeasily shipwreck resin aquarium ornament depicting a sunken vessel amidst aquatic plants, adding cha
A detailed, multicolor Raeasily shipwreck resin aquarium ornament depicting a sunken vessel amidst aquatic plants, adding cha
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Raeasily Shipwreck Resin Aquarium Ornament, 5.5″ Realistic Fish Tank Decor

$6.89
Textured resin artificial driftwood cave with silk plants, suitable for fish tanks and terrariums, offering a naturalistic hi
Textured resin artificial driftwood cave with silk plants, suitable for fish tanks and terrariums, offering a naturalistic hi
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relaqcc Artificial Driftwood Cave Aquarium Decor with Silk Plants for Betta Fish

$8.90
Yellow and green relaqcc Leaning Vase Hideaway Cave aquarium decor, suitable for fish and reptiles.
Yellow and green relaqcc Leaning Vase Hideaway Cave aquarium decor, suitable for fish and reptiles.
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relaqcc Leaning Vase Aquarium Decor Hideaway Cave for Betta Fish & Reptiles

$15.99
A detailed blue resin sunken ship decoration positioned within a vibrant aquarium, surrounded by green aquatic plants.
A detailed blue resin sunken ship decoration positioned within a vibrant aquarium, surrounded by green aquatic plants.
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SLOCME Aquarium Shipwreck Decoration – Blue Resin Sunken Ship Ornament, 9-inch

$12.99
Multicolor resin castle aquarium decoration featuring an Eastern Tower design, providing shelter for fish.
Multicolor resin castle aquarium decoration featuring an Eastern Tower design, providing shelter for fish.
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SLOCME Multicolor Resin Eastern Tower Aquarium Castle Decoration – 6.7-inch

$16.99