ENDS TODAY! 35% OFF 1st Autoship + 5K pts on 2nd order, see terms >

  • $0 - $50+

    $0$25$50+

Featured Brands

(13 results)
Seachem® Prime® Aquarium Water Conditioner
3 sizes

Seachem® Prime® Aquarium Water Conditioner

(359)
$7.99 - $17.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Seachem® Stability® New Tank Stabilization System Aquarium Water Conditioner
2 sizes

Seachem® Stability® New Tank Stabilization System Aquarium Water Conditioner

(190)
$12.99 - $17.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Seachem® Purigen® Premium Synthetic Absorbent
2 sizes

Seachem® Purigen® Premium Synthetic Absorbent

(54)
$17.99 - $19.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Seachem® Matrix™

Seachem® Matrix™

(20)
$10.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Seachem® Flourish Excel™

Seachem® Flourish Excel™

(10)
$15.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Seachem® Clarity™

Seachem® Clarity™

(16)
$17.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Seachem® Alert Combo™ Aquarium pH & Ammonia Detector

Seachem® Alert Combo™ Aquarium pH & Ammonia Detector

(76)
$20.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Seachem® PhosGuard™

Seachem® PhosGuard™

(3)
$11.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Seachem® CupriSorb™ - Copper & Heavy Metal Absorbent

Seachem® CupriSorb™ - Copper & Heavy Metal Absorbent

(0)
$17.99
Enjoy Free Same-day delivery!
Enjoy Free Shipping On Orders $49+.
Seachem® Matrix Carbon™

Seachem® Matrix Carbon™

(0)
$11.99
Enjoy Free Same-day delivery!
Enjoy Free Shipping On Orders $49+.
Seachem® The Bag ™ Welded Filter

Seachem® The Bag ™ Welded Filter

(4)
$11.99
Enjoy Free Same-day delivery!
Enjoy Free Shipping On Orders $49+.
Seachem Flourish Potassium™

Seachem Flourish Potassium™

(6)
$15.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
Seachem® Marine Buffer

Seachem® Marine Buffer

(2)
$14.99
Save 35% On Your First Autoship Order!
Earn a 5,000-point Reward Certificate when you get your second Autoship delivery by 11/30
+ 2 more
  1. 1
Download on the App StoreDownload on the Google Play Store
Copyright © 2025 PetSmart LLC
RecallsTerms of Use Privacy Policy Interest-Based Ads Canada Modern Slavery ActFS
*See offer details. Exclusions may apply. Prices & selection may vary by store & online.