Adhesives & Sealants

(54 results)
Marineland Open Glass Aquarium
3 sizes
(143)
$17.99 - $159.99
Buy any open glass tank, Get 20% off a glass hood
Marineland® Simple Modern LED Aquarium & Stand Ensemble - 45 Gallon
(137)
$299.99
$599.99
Online Only! Save 20% on select tanks, terrariums and habitats
Marineland® Modern LED Aquarium & Stand Ensemble - 60 Gallon
(503)
$449.99
$699.99
Online Only! Save 20% on select tanks, terrariums and habitats
Marineland Penguin PRO 375 Aquarium Power Filter
(207)
$64.89
$69.99
Save 20% Marineland Filters w/code FILTER20
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Marineland® Emperor® PRO 450 Aquarium Filter
(100)
$94.79
$99.99
Save 20% Marineland Filters w/code FILTER20
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Marineland® Penguin Rite Size C Power Filter Cartridges
(92)
$19.99
$23.99
Save 35% On Your First Autoship Order!
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Marineland® C360 Aquarium Canister Filter
(383)
$216.29
$219.99
Save 20% Marineland Filters w/code FILTER20
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Marineland® Penguin PRO 275 Aquarium Power Filter
(225)
$51.29
$54.99
Save 20% Marineland Filters w/code FILTER20
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Marineland® Magniflow C250 Aquarium Canister Filter - 55G
(244)
$155.59
$169.99
Save 20% Marineland Filters w/code FILTER20
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Marineland® Rite Size Emperor Power Filter Cartridge
(54)
$13.19
$15.59
Save 35% On Your First Autoship Order!
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Marineland® Polishing Internal Filter
(227)
$92.89
$99.99
Save 20% Marineland Filters w/code FILTER20
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Marineland® Silicone Aquarium Sealant
(54)
$5.39
$7.19
Free Same-Day Delivery, No Order Minimum!
Sign In & Enjoy Free Shipping Over $49
Marineland® Black Diamond Carbon
(26)
$9.99
$24.99
Save 35% On Your First Autoship Order!
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Marineland LED Aquarium Kit 5 Gal
(0)
$74.49
$114.79
Save 35% On Your First Autoship Order!
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Marineland Magnum 200 Polishing Internal Canister Filter
(20)
$59.99
$69.99
Save 20% Marineland Filters w/code FILTER20
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Marineland Penguin PRO 125 Aquarium Power Filter
(189)
$33.99
$34.99
Save 20% Marineland Filters w/code FILTER20
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Marineland Penguin PRO 175 Aquarium Power Filter
(194)
$43.19
$44.99
Save 20% Marineland Filters w/code FILTER20
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Marineland® Visi-Therm Submersible Aquarium Heater
(239)
$32.97 - $41.49
Free Same-Day Delivery, No Order Minimum!
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Marineland® Hidden LED Lighting System
(126)
$42.59
$49.99
Free Same-Day Delivery, No Order Minimum!
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Marineland®  LED Aquarium Light Bar
(261)
$33.49
$46.99
Free Same-Day Delivery, No Order Minimum!
Sign In & Enjoy Free Shipping Over $49
Marineland® Carbon Filter Bags
(47)
$8.59
$12.99
Save 35% On Your First Autoship Order!
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Marineland® Penguin Rite Size B Power Filter Cartridges
(56)
$17.59
$19.99
Save 35% On Your First Autoship Order!
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Marineland Biological Media Pro Baskets
(0)
$21.09
Save 35% On Your First Autoship Order!
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Marineland AP 300 Aquarium Air Pump
(0)
$113.19
Save 35% On Your First Autoship Order!
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Marineland Reusable Media Bags 4 ct
(0)
$4.99
Save 35% On Your First Autoship Order!
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Marineland Magniflow Canister Filter
(0)
$119.99
$158.59
Save 20% Marineland Filters w/code FILTER20
Save 35% On Your First Autoship Order!
+ 1 more
Marineland Adjustable LED Light
(0)
$199.99
$240.49
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Marineland Contour Aquarium Kit 3 Gal
(60)
$59.99
$96.99
Save 35% On Your First Autoship Order!
Sign In & Enjoy Free Shipping Over $49
Marineland Maxi Jet 900 Water Pump
(0)
$40.09
Save 35% On Your First Autoship Order!
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Marineland® Magnum 200 Polishing Internal Filter Floss Sleeve
(0)
$4.79
$4.99
Save 35% On Your First Autoship Order!
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Marineland® 2-in-1 Bio-Foam & Pre-Filter - Fits 375 to 450
(26)
$5.79
$6.99
Save 35% On Your First Autoship Order!
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Marineland® 2-in-1 Bio-Foam & Pre-Filter - Fits 125 to 275
(26)
$6.29
$7.59
Save 35% On Your First Autoship Order!
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Marineland® Maxi-Jet® 1200 Aquarium Water Pump and Power Head
(97)
$19.89
$39.99
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Marineland® C360 Polishing Filter Pads
(6)
$6.49
$6.99
Save 35% On Your First Autoship Order!
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Marineland® C160/220 Polishing Filter Pads
(14)
$3.99
$5.09
Save 35% On Your First Autoship Order!
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Marineland® C360 Filter Foam
(2)
$3.99
$12.99
Save 35% On Your First Autoship Order!
Free Same-Day Delivery, No Order Minimum!
+ 1 more
Marineland® Bio-Filter Balls
(4)
$4.99
$6.99
Save 35% On Your First Autoship Order!
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Marineland® Filter Foam
(2)
$2.89
$8.99
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Even the best fish tanks and aquariums sometimes spring a leak! When this happens, pet parents need to quickly seal that leak to maintain the structure of the tank until they can replace it. Aquarium sealant is a great product to accomplish this. 
But that is not where the usefulness of aquarium sealants and adhesives stops. These products are also great for adhering items to the bottom or walls of a fish’s tank, like decor or artificial plants, so that they stay put instead of floating around. 
Pet Parents can find the best fish tank sealants and adhesives at PetSmart. Here, we want to help you create the perfect home for your pets. 
Shop in-store and online to find everything you need to care for your fish. Need other aquarium supplies for their tank? We also sell other fish tank maintenance and repair products like brushes/tank cleanersfish tank vacuumsfish tank water changersfish breeders/nets, and more. 
PetSmart also offers convenient shopping with curbside or in-store pickup. Need something today? We have select items available for same-day delivery in most areas powered by DoorDash. For items you purchase frequently, PetSmart has Autoship that automatically delivers the items you want to your door as often as you’d like. Check the website to see what items are eligible.