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Decorations

Items 1 to 48 of 1048 total

If you truly want to create a unique habitat for your fish, turn to Big Al’s Pets. We carry more than 500 aquarium decorations to give you endless options for personalizing your aquarium. We’ll help you set the stage with decorative rocks and stones and gorgeous backgrounds to finish your aquarium scenery. Then, you can choose from our huge selection of plastic plants, silk plants, driftwood, and coral replicas to create an underwater paradise for your fish. We even have resin, ceramic, and aerating ornaments as well as submersible colored lights to add visual appeal to your aquarium.

You won’t find a selection this extensive at any other online retailer. And with our great sale prices, we make it easy to decorate your tank from top to bottom without going over budget. Browse our collection today to find the aquarium decorations you’ve been searching for.
  • CaribSea Reef Rock - 50 lb
    A great addition to fish or reef tanks. Actual petrified coral! Reef rock retains excellent coral texture and is ideal for use as an economical base rock on which to attach invertebrates such as anemones, soft and hard corals, etc.

    Regular Price: USD 65.47

    Sale Price USD 49.99

    Regular Price: USD 65.47

    Sale Price USD 49.99

  • Underwater Treasures Black/Blue Reversible Background - 32" - Sold by the Foot
    • Conceals unsightly hoses and wiring behind your aquarium
    • Makes your aquascape and fish POP!
    • Sold by the foot and easy to cut for a custom fit

    Regular Price: USD 3.49

    Sale Price USD 2.49

    Regular Price: USD 3.49

    Sale Price USD 2.49

  • Underwater Treasures Sea Floor/Creeping Vines Reversible Background - 24" - Sold by the Foot
    • Conceals unsightly hoses and wiring behind your aquarium
    • Makes your aquascape and fish POP!
    • Sold by the foot and easy to cut for a custom fit

    Regular Price: USD 2.99

    Sale Price USD 1.99

    Regular Price: USD 2.99

    Sale Price USD 1.99

  • Underwater Treasures Water Grass/Grassy Blue Reversible Background - 24" - Sold by the Foot
    • Conceals unsightly hoses and wiring behind your aquarium
    • Makes your aquascape and fish POP!
    • Sold by the foot and easy to cut for a custom fit

    Regular Price: USD 2.99

    Sale Price USD 1.99

    Regular Price: USD 2.99

    Sale Price USD 1.99

  • Underwater Treasures Black/Blue Reversible Background - 24" - Sold by the Foot
    • Conceals unsightly hoses and wiring behind your aquarium
    • Makes your aquascape and fish POP!
    • Sold by the foot and easy to cut for a custom fit

    Regular Price: USD 2.99

    Sale Price USD 1.99

    Regular Price: USD 2.99

    Sale Price USD 1.99

  • Underwater Treasures Hawaii Blue/Show Reef Reversible Background - 20" - Sold by the Foot
    • Conceals unsightly hoses and wiring behind your aquarium
    • Makes your aquascape and fish POP!
    • Sold by the foot and easy to cut for a custom fit

    Regular Price: USD 2.99

    Sale Price USD 1.99

    Regular Price: USD 2.99

    Sale Price USD 1.99

  • Underwater Treasures Grassy Peaks/Green Abyss Reversible Background - 20" - Sold by the Foot
    • Conceals unsightly hoses and wiring behind your aquarium
    • Makes your aquascape and fish POP!
    • Sold by the foot and easy to cut for a custom fit

    Regular Price: USD 2.99

    Sale Price USD 1.99

    Regular Price: USD 2.99

    Sale Price USD 1.99

  • Underwater Treasures Black/Blue Reversible Background - 20" - Sold by the Foot
    • Conceals unsightly hoses and wiring behind your aquarium
    • Makes your aquascape and fish POP!
    • Sold by the foot and easy to cut for a custom fit

    Regular Price: USD 2.99

    Sale Price USD 1.99

    Regular Price: USD 2.99

    Sale Price USD 1.99

  • Marina Bamboo Shoots Ornament for 3 L Betta Kits
    This hand crafted, hand painted decorative bamboo shoots ornament is designed for the 3L Marina Betta kits, but can be used for any application. Spruce up your aquarium, your dresser, or your desk at work with a little bit of peace and tranquility.

    Regular Price: USD 12.99

    Sale Price USD 8.99

    Regular Price: USD 12.99

    Sale Price USD 8.99

  • Marina Callalily Ornament for 2 L Betta Kits
    This beautiful Calla Lilly ornament is made of silk and plastic to ensure long life for whatever decorative application you choose; whether you're sprucing up your aquarium, dresser, nightstand, or even your desk at work.

    Regular Price: USD 6.99

    Sale Price USD 4.49

    Regular Price: USD 6.99

    Sale Price USD 4.49

  • Marina Micro LED Light Set
    Hagen Micro LED Lights White LED Light Set, Submersible fresh or saltwater aquarium lights at an affordable price

    Regular Price: USD 17.99

    Sale Price USD 10.99

    Regular Price: USD 17.99

    Sale Price USD 10.99

  • Marina Micro LED Aquarium Light - Red
    • Enhances your aquarium with spectacular lighting effects
    • Makes a great nightlight for nocturnal viewing
    • Fully submersible LED with integrated suction cup mount
    • Positions anywhere inside or outside your aquarium
    • Red LED is ideal for viewing nocturnal species and behaviors

    Regular Price: USD 10.99

    Sale Price USD 6.99

    Regular Price: USD 10.99

    Sale Price USD 6.99

  • Marina Rock Ornament for 2 L Betta Kits
    This rock ornament is made of a special polyresin that is 100% non-toxic, making it safe to use absolutely anywhere; in or out of water. Designed for use in the Marina Betta Kits, but can be used to decorate anywhere you please!

    Regular Price: USD 6.99

    Sale Price USD 4.49

    Regular Price: USD 6.99

    Sale Price USD 4.49

  • Hydor Ario Volcano Kit - Red
    Hand-painted for a natural look, these submersible Volcanos house the Hydor Ario Turbo Air Pump 2 with red LED, which creates an eruption of colorful, oxygen rich bubbles. Constructed of non-toxic resin. A great hiding place for equipment and wiring.

    Regular Price: USD 54.99

    Sale Price USD 42.99

    Regular Price: USD 54.99

    Sale Price USD 42.99

  • Penn Plax Action-Air Treasure Chest - Small
    Add the excitement of action to any home aquarium with Penn Plax Action-Air Aerating Plastic Ornaments. Simple to install, these ornaments will require an appropriately sized air pump, as well as a pressure control valve for proper functionality.

    Regular Price: USD 6.99

    Sale Price USD 4.49

    Regular Price: USD 6.99

    Sale Price USD 4.49

    Out of stock

  • Penn Plax Action-Air Treasure Chest - Medium
    Add the excitement of action to any home aquarium with Penn Plax Action-Air Aerating Plastic Ornaments. Simple to install, these ornaments will require an appropriately sized air pump, as well as an pressure control valve for proper functionality.

    Regular Price: USD 8.99

    Sale Price USD 5.99

    Regular Price: USD 8.99

    Sale Price USD 5.99

  • Penn Plax Action-Air Barrel of Jewels
    Add the excitement of action to any home aquarium with Penn Plax Action-Air Aerating Plastic Ornaments. Simple to install, these ornaments will require an appropriately sized air pump, as well as a pressure control valve for proper functionality.

    Regular Price: USD 6.99

    Sale Price USD 4.49

    Regular Price: USD 6.99

    Sale Price USD 4.49

    Out of stock

  • Penn Plax Action-Air Diver with Eel
    Add the excitement of action to any home aquarium with Penn Plax Action-Air Aerating Plastic Ornaments. Simple to install, these ornaments will require an appropriately sized air pump, as well as a pressure control valve for proper functionality.

    Regular Price: USD 12.99

    Sale Price USD 7.99

    Regular Price: USD 12.99

    Sale Price USD 7.99

  • Penn Plax Action-Air Diver with Hose
    Add the excitement of action to any home aquarium with Penn Plax Action-Air Aerating Plastic Ornaments. Simple to install, these ornaments will require an appropriately sized air pump, as well as a pressure control valve for proper functionality.

    Regular Price: USD 6.99

    Sale Price USD 4.49

    Regular Price: USD 6.99

    Sale Price USD 4.49

  • Penn Plax Dora Mermaid
    Nickelodeon's Dora the Explorer now ventures into the deep blue sea with this detailed and colorful aquarium decoration. Part of an entire series, this durable figure will make an excellent addition to any fun-filled aquarium environment.

    Regular Price: USD 6.99

    Sale Price USD 4.49

    Regular Price: USD 6.99

    Sale Price USD 4.49

  • Penn Plax Gary
    Add Gary from the popular Tv series Sponge Bob Squarpants to your home aquarium.

    Regular Price: USD 5.99

    Sale Price USD 3.99

    Regular Price: USD 5.99

    Sale Price USD 3.99

  • Penn Plax Action-Air Half Shipwreck
    Add the excitement of action to any home aquarium with Penn Plax Action-Air Aerating Plastic Ornaments. Simple to install, these ornaments will require an appropriately sized air pump, as well as a pressure control valve for proper functionality.

    Regular Price: USD 6.99

    Sale Price USD 4.49

    Regular Price: USD 6.99

    Sale Price USD 4.49

  • Penn Plax Mr. Krabs
    Add Mr. Krabs from the popular Tv series Sponge Bob Squarpants to your home aquarium.

    Regular Price: USD 5.99

    Sale Price USD 3.99

    Regular Price: USD 5.99

    Sale Price USD 3.99

  • Penn Plax Patrick
    Add Patrick from the popular Tv series Sponge Bob Squarpants to your home aquarium.

    Regular Price: USD 5.99

    Sale Price USD 3.99

    Regular Price: USD 5.99

    Sale Price USD 3.99

  • Penn Plax Plankton
    This amusing Plankton ornament is sure to spice things up in your aquarium while bringing smiles and humor to viewers young and old. Hand painted and made using only the highest quality materials.

    Regular Price: USD 3.99

    Sale Price USD 2.99

    Regular Price: USD 3.99

    Sale Price USD 2.99

  • Penn Plax Action-Air Rice Mill
    Add the excitement of action to any home aquarium with Penn Plax Action-Air Aerating Plastic Ornaments. Simple to install, these ornaments will require an appropriately sized air pump, as well as a pressure control valve for proper functionality.

    Regular Price: USD 7.99

    Sale Price USD 5.49

    Regular Price: USD 7.99

    Sale Price USD 5.49

  • Penn Plax Sandy
    Add Sandy from the popular TV series Sponge Bob Squarpants to your home aquarium. This vibrantly colored decoration is safe for both freshwater and saltwater aquariums.

    Regular Price: USD 3.99

    Sale Price USD 2.99

    Regular Price: USD 3.99

    Sale Price USD 2.99

  • Penn Plax Action-Air Skeleton at the Wheel
    Add the excitement of action to any home aquarium with Penn Plax Action-Air Aerating Plastic Ornaments. Simple to install, these ornaments will require an appropriately sized air pump, as well as a pressure control valve for proper functionality.

    Regular Price: USD 13.99

    Sale Price USD 8.99

    Regular Price: USD 13.99

    Sale Price USD 8.99

    Out of stock

  • Penn Plax Action-Air Skeleton on Toilet
    Add the excitement of action to any home aquarium with Penn Plax Action-Air Aerating Plastic Ornaments. Simple to install, these ornaments will require an appropriately sized air pump, as well as a pressure control valve for proper functionality.

    Regular Price: USD 8.99

    Sale Price USD 5.99

    Regular Price: USD 8.99

    Sale Price USD 5.99

  • Penn Plax Action-Air Skeleton with Jug & Treasure Chest
    Add the excitement of action to any home aquarium with Penn Plax Action-Air Aerating Plastic Ornaments. Simple to install, these ornaments will require an appropriately sized air pump, as well as a pressure control valve for proper functionality.

    Regular Price: USD 13.99

    Sale Price USD 8.99

    Regular Price: USD 13.99

    Sale Price USD 8.99

  • Penn Plax Action-Air Split Shipwreck
    Add the excitement of action to any home aquarium with Penn Plax Action-Air Aerating Plastic Ornaments. Simple to install, these ornaments will require an appropriately sized air pump, as well as a pressure control valve for proper functionality.

    Regular Price: USD 12.99

    Sale Price USD 7.99

    Regular Price: USD 12.99

    Sale Price USD 7.99

  • Penn Plax Spongebob
    Add Spongebob and his hilarious antics to your aquarium today

    Regular Price: USD 3.99

    Sale Price USD 2.99

    Regular Price: USD 3.99

    Sale Price USD 2.99

  • SpongeBob's Pineapple Home with Swim-Through Holes
    Deep within the Pacific Ocean, in the city of Bikini Bottom lives a square yellow sea sponge named SpongeBob Squarepants. These vibrantly colored resin ornaments depict SpongeBob's Funky Pineapple Home! For freshwater and saltwater aquariums.

    Regular Price: USD 8.99

    Sale Price USD 5.99

    Regular Price: USD 8.99

    Sale Price USD 5.99

  • Penn Plax Squidward
    Add Squidward from the popular Tv series Sponge Bob Squarpants to your home aquarium.

    Regular Price: USD 3.99

    Sale Price USD 2.99

    Regular Price: USD 3.99

    Sale Price USD 2.99

  • Penn Plax Squidward's Easter Island Home
    Every aquarium needs a slice of Bikini Bottom and what better way to add it than having Squidward's monolithic house in your home aquarium or fish bowl. This licensed Nickelodeon SpongeBob ornament makes an exciting ornament in any aquarium.

    Regular Price: USD 8.99

    Sale Price USD 5.99

    Regular Price: USD 8.99

    Sale Price USD 5.99

  • Penn Plax Action-Air Tropical Clam
    Add the excitement of action to any home aquarium with Penn Plax Action-Air Aerating Plastic Ornaments. Simple to install, these ornaments will require an appropriately sized air pump, as well as a pressure control valve for proper functionality.

    Regular Price: USD 8.99

    Sale Price USD 5.99

    Regular Price: USD 8.99

    Sale Price USD 5.99

  • Graphic Adhesive Removable Graphic Adhesive - 2 fl oz
    • Quickly and easily secures graphics
    • Creates a bright, clear, and bubble-free appearance
    • Equally effective on glass and acrylic surfaces
    • Safe, non-toxic formula

    Regular Price: USD 5.99

    Sale Price USD 3.99

    Regular Price: USD 5.99

    Sale Price USD 3.99

  • Underwater Treasures 3D Background - Vines - 24"
    • Made with non-toxic polyurethane foam
    • Great for both freshwater and saltwater applications
    • Also great for terrestrial, aquatic, and semi-aquatic terrariums
    • Will not affect the pH of your aquarium
    • Installs easily with standard aquarium silicone

    Regular Price: USD 26.99

    Sale Price USD 19.99

    Regular Price: USD 26.99

    Sale Price USD 19.99

  • Underwater Treasures Ancient Greek Urns
    These incredibly realistic decorations are hand crafted and painted using only the highest quality materials. Non-toxic, and safe for use in both freshwater and saltwater aquariums. Enhance your aquarium with any of these exciting decorations!

    Regular Price: USD 17.99

    Sale Price USD 10.99

    Regular Price: USD 17.99

    Sale Price USD 10.99

  • Underwater Treasures Ancient Wine Vessel - Medium
    These incredibly realistic decorations are hand crafted and painted using only the highest quality materials. Non-toxic, and safe for use in both freshwater and saltwater aquariums. Enhance your aquarium with any of these exciting decorations!

    Regular Price: USD 10.99

    Sale Price USD 6.99

    Regular Price: USD 10.99

    Sale Price USD 6.99

  • Underwater Treasures Aquarium Wood - Small
    • Wood roots compliment aquatic environments
    • Pieces vary in shape and size within the range
    • Small - each piece is approximately 3" to 12"
    • Small - each piece is approximately 3" to 12"

    Regular Price: USD 15.99

    Sale Price USD 9.99

    Regular Price: USD 15.99

    Sale Price USD 9.99

  • Underwater Treasures Aquarium Wood - Medium
    • Wood roots compliment aquatic environments
    • Pieces vary in shape and size within the range
    • Medium - each piece is approximately 7" to 18"
    • Medium - each piece is approximately 7" to 18"

    Regular Price: USD 19.99

    Sale Price USD 12.99

    Regular Price: USD 19.99

    Sale Price USD 12.99

  • Underwater Treasures Aquarium Wood - Large
    • Wood roots compliment aquatic environments
    • Pieces vary in shape and size within the range
    • Large - each piece is approximately 15" to 24"
    • Large - each piece is approximately 15" to 24"

    Regular Price: USD 79.99

    Sale Price USD 49.99

    Regular Price: USD 79.99

    Sale Price USD 49.99

  • Underwater Treasures Aquarium Wood - XL
    • Wood roots compliment aquatic environments
    • Pieces vary in shape and size within the range
    • XLarge - each piece is approximately 19" - 28"
    • XLarge - each piece is approximately 19" - 28"

    Regular Price: USD 99.99

    Sale Price USD 59.99

    Regular Price: USD 99.99

    Sale Price USD 59.99

  • Underwater Treasures Green Bacopa (2 Pod) - 3"
    Underwater Treasures plants will make an excellent and exciting addition to your aquarium! Life-like underwater movement and vivid coloration. Safe for use in both freshwater and saltwater aquariums.

    Regular Price: USD 2.99

    Sale Price USD 1.99

    Regular Price: USD 2.99

    Sale Price USD 1.99

  • Underwater Treasures Red/Green Bacopa (2 Pod) - 3"
    Underwater Treasures plants will make an excellent and exciting addition to your aquarium! Life-like underwater movement and vivid coloration. Safe for use in both freshwater and saltwater aquariums.

    Regular Price: USD 2.99

    Sale Price USD 1.99

    Regular Price: USD 2.99

    Sale Price USD 1.99

  • Underwater Treasures Cabomba - 20"
    • 100% Safe for Fresh and Saltwater Aquariums, and Terrariums too!!
    • Made with non-toxic materials

    Regular Price: USD 7.99

    Sale Price USD 5.49

    Regular Price: USD 7.99

    Sale Price USD 5.49

  • Underwater Treasures Bamboo with Airstone - 12"
    Underwater Treasures plants will make an excellent and exciting addition to your aquarium! Life-like underwater movement and vivid coloration. Safe for use in both freshwater and saltwater aquariums.

    Regular Price: USD 13.99

    Sale Price USD 8.99

    Regular Price: USD 13.99

    Sale Price USD 8.99

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