Swim into deep savings

Upgrade their tank, refresh aquatic filters & more

How to Set Up an Aquarium

Learn what you'll need & how to put it together for a happy fish habitat.

Fish

(1497 results)
Top Fin® Essentials All-In-One Aquarium Starter Kit - 10 Gallon Fish Tank
(0)
$44.99
$89.99
Save 50% on ALL 10 gallon & below Top Fin Essentials Starter Kits thru 11/29, price displayed
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
Top Fin® Pre-Conditioned Aquarium Water - Fish Tank Care - 2.5 Gallon
(253)
$16.99
Save 40% On First Autoship Order of Aquatic Watercare
Buy 2, get the 3rd 50% OFF ALL Top Fin conditioned water
Top Fin® Essentials All-In-One Aquarium Starter Kit - 5 Gallon Fish Tank
(0)
$34.99
$69.99
Save 50% on ALL 10 gallon & below Top Fin Essentials Starter Kits thru 11/29, price displayed
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
API® Freshwater Aquarium Master Test Kit for pH, Ammonia, Nitrite & Nitrate
(459)
$35.99
$39.99
Save 40% On First Autoship Order of Aquatic Watercare
Buy 1 Get the 2nd 25% OFF on ALL Aquatic Food & Watercare! Excludes Top Fin® pre-conditioned water.
Top Fin® Large Power Filter Cartridges for Fish Tanks - 12 Count
(300)
$17.99
Buy Any Aquatic Filter and Get 20% Off All Aquatic Media
Top Fin® PF-S Silenstream Aquarium Filter Cartridges - 3-12 Count
2 sizes
(244)
$8.99
Options from
Buy Any Aquatic Filter and Get 20% Off All Aquatic Media
Fluval® Plant & Shrimp Stratum Aquarium Substrate Planted Tank Substrate Shrimp Substrate
3 sizes
(139)
$15.99
$17.99
Options from
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
Seachem® Prime® Aquarium Water Conditioner Chlorine & Ammonia Detoxifier
4 sizes
(385)
$3.19
$6.99
Options from
Save 40% On First Autoship Order of Aquatic Watercare
Buy 1 Get the 2nd 25% OFF on ALL Aquatic Food & Watercare! Excludes Top Fin® pre-conditioned water.
Marineland® Open Glass Fish Tank - 75 Gallon
(0)
$149.99
$299.99
Save 50% on 40-75 gallon Aqueon® & Marineland® open-glass aquariums thru 11/19, price displayed
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
Top Fin® Bow Front Aquarium All-In-One Starter Kit -  36 Gallon Fish Tank
(501)
$143.99
$179.99
Save 20% on 20+ gallon Top Fin Essentials Starter Kits thru 11/19, price displayed
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
Marineland® Open Glass Fish Tank - 40 Gallon
(0)
$74.99
$149.99
Save 50% on 40-75 gallon Aqueon® & Marineland® open-glass aquariums thru 11/19, price displayed
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
Top Fin® Essentials All-In-One Aquarium Starter Kit - 20 Gallon Fish Tank
(4538)
$119.99
$149.99
Save 20% on 20+ gallon Top Fin Essentials Starter Kits thru 11/19, price displayed
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
Top Fin® Cube Aquarium Essentials Starter Kit - 10 Gallon Fish Tank
(14)
$44.99
$89.99
Save 50% on ALL 10 gallon & below Top Fin Essentials Starter Kits thru 11/29, price displayed
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
Aqueon® Standard Open Glass Aquarium - 20 Gallon Long Fish Tank
(415)
$79.99
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
Top Fin® Angled Aquarium -10 Gallon Fish Tank
(175)
$89.99
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
Top Fin® All-In-One Betta Aquarium Starter Kit - 3 Gallon Fish Tank
(527)
$27.49
$54.99
Save 50% on ALL 10 gallon & below Top Fin Essentials Starter Kits thru 11/29, price displayed
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
CaribSea Super Naturals Aquarium Sand - White Fish Tank Sand
(41)
$23.79
$27.99
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
Top Fin® Fascinate All-In-One Starter Kit - 10 Gallon Column Fish Tank
(387)
$44.99
$89.99
Save 50% on ALL 10 gallon & below Top Fin Essentials Starter Kits thru 11/29, price displayed
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
Top Fin® Aquarium Sand - Black - Fish Tank Substrate - 5-20 lb
2 sizes
(8)
$9.99
Options from
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
Nature's Ocean Live Nutri-Seawater for Saltwater Aquariums
(37)
$21.39
$25.99
Save 40% On First Autoship Order of Aquatic Watercare
Buy 1 Get the 2nd 25% OFF on ALL Aquatic Food & Watercare! Excludes Top Fin® pre-conditioned water.
Top Fin® Silenstream™ Small Filter Cartridges for Fish Tanks - 6 Count
(67)
$9.99
$14.99
Save 40% On First Autoship Order of Aquatic Filter Media
Buy Any Aquatic Filter and Get 20% Off All Aquatic Media
Marineland® Open Glass Fish Tank - 10 Gallon
(238)
$35.99
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
Top Fin® Corner Tank Aquarium Starter Kit - 6 Gallon Fish Tank
(403)
$42.49
$84.99
Save 50% on ALL 10 gallon & below Top Fin Essentials Starter Kits thru 11/29, price displayed
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
Top Fin® Element EF-S Filter Cartridges for Fish Tanks - 3-12 Count
3 sizes
(388)
$6.99
$14.99
Options from
Buy Any Aquatic Filter and Get 20% Off All Aquatic Media
Top Fin® Small Live Aquarium Plant Variety Pack for Fish Tanks - 4 in
(3)
$17.99
Save 25% when you buy 4+ ornaments, plastic plants & live plants, mix & match allowed
Earn 10% back in savings (that's 5X points) on ALL fish and aquatic & reptile plants thru 11/25
Top Fin® Half Moon Aquarium - 3.5 Gallon
(2102)
$34.99
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
Top Fin® Silenstream™ Aquarium Power Filter - 10-75 Gallon
5 sizes
(1624)
$17.79
$18.99
Options from
Buy Any Aquatic Filter and Get 20% Off All Aquatic Media
Top Fin® Java Fern Live Aquarium Plant for Fish Tanks - 4-12 in
2 sizes
(4)
$6.99
Options from
Save 25% when you buy 4+ ornaments, plastic plants & live plants, mix & match allowed
Earn 10% back in savings (that's 5X points) on ALL fish and aquatic & reptile plants thru 11/25
Seachem® Stability® New Tank Stabilization System Aquarium Water Conditioner
2 sizes
(214)
$4.99
Options from
Save 40% On First Autoship Order of Aquatic Watercare
Buy 1 Get the 2nd 25% OFF on ALL Aquatic Food & Watercare! Excludes Top Fin® pre-conditioned water.
Top Fin® Pre-Conditioned Betta Aquarium Water - 1 Gallon
(12)
$12.99
Save 40% On First Autoship Order of Aquatic Watercare
Buy 2, get the 3rd 50% OFF ALL Top Fin conditioned water
Top Fin® Anubias Barteri Live Aquarium Plant for Fish Tanks - 4 in
(51)
$6.99
Save 25% when you buy 4+ ornaments, plastic plants & live plants, mix & match allowed
Earn 10% back in savings (that's 5X points) on ALL fish and aquatic & reptile plants thru 11/25
Top Fin® Premium Aquarium Gravel - Classic Beach - Fish Tank Substrate - 5 lb
(68)
$7.99
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
Aqua Natural Aquarium Sand - White Fish Tank Sand
(73)
$13.99
Buy any tank, get 20% OFF ALL aquarium substrate. Excludes gems.
Omega™One Frozen Blood Worms Fish Food High-Protein Frozen Fish Food for Aquarium Fish
(216)
$9.99
Buy 1 Get the 2nd 25% OFF on ALL Aquatic Food & Watercare! Excludes Top Fin® pre-conditioned water.
Top Fin® Aquarium Air Pump
3 sizes
(796)
$18.99
Options from
API® Stress Coat Tap Water Aquarium Conditioner for Tap Water Dechlorinating
6 sizes
(544)
$2.28
$4.99
Options from
Save 40% On First Autoship Order of Aquatic Watercare
Buy 1 Get the 2nd 25% OFF on ALL Aquatic Food & Watercare! Excludes Top Fin® pre-conditioned water.
Seachem® Purigen® Premium Synthetic Absorbent - Aquarium Filter Media
2 sizes
(68)
$9.89
$12.99
Options from
Save 40% On First Autoship Order of Aquatic Filter Media
Buy Any Aquatic Filter and Get 20% Off All Aquatic Media
Omega™One Frozen Bloodworms Fish Food High-Protein Frozen Fish Food for Aquarium Fish
(192)
$9.99
Buy 1 Get the 2nd 25% OFF on ALL Aquatic Food & Watercare! Excludes Top Fin® pre-conditioned water.
  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. ...
  7. 25