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API Products

Best Seller

API Pond AlgaeFix Algae Control for Ponds

$9.86 - $227.00
  • $454.99
  • Save $228 (50%)
4.8 (76)
Best Seller

API Stress Coat + Fish and Tap Water Conditioner

$1.79 - $219.29
  • $438.99
  • Save $220 (50%)
4.8 (30)
Best Seller

API Aquarium Salt for Freshwater Aquariums

$6.55 - $66.96
  • $133.99
  • Save $67 (50%)
4.7 (13)
Best Seller

API Filstar XP Filtration Pads

$9.59 - $54.66
  • $109.99
  • Save $55 (50%)
4.9 (10)
Best Seller

API Pond Pond Zyme Sludge Destroyer

$16.99 - $74.93
  • $149.99
  • Save $75 (50%)
4.9 (8)
Best Seller

API Stress Zyme Plus Bio Filtration Booster

$1.99 - $239.00
  • $478.99
  • Save $240 (50%)
5.0 (10)
Best Seller

API Tap Water Conditioner

$3.99 - $134.00
  • $268.99
  • Save $135 (50%)
4.7 (3)
Best Seller

API Pond Stress Coat Water Conditioner

$11.77 - $233.00
  • $466.99
  • Save $234 (50%)
4.9 (11)
Best Seller

API Filstar XP Micro Filtration Pads

$6.59 - $37.56
  • $75.99
  • Save $38 (51%)
4.8 (13)
Best Seller

API Pond Accu-Clear Quickly Clears Pond Water

$12.00 - $227.00
  • $454.99
  • Save $228 (50%)
4.8 (18)
Best Seller

API MelaFix Antibacterial Fish Remedy

$5.99 - $212.00
  • $424.99
  • Save $213 (50%)
4.9 (17)
Best Seller

API Super Activated Carbon Size 6

$6.99 - $39.84
  • $79.99
  • Save $40 (50%)
4.8 (9)
Best Seller

API Nitra-Zorb

$13.99 - $159.00
  • $318.99
  • Save $160 (50%)
5.0 (4)
Best Seller

API AlgaeFix for Freshwater Aquariums

$3.79 - $159.00
  • $318.99
  • Save $160 (50%)
5.0 (4)
Best Seller

API Bio-Chem Zorb Filter Media

$11.59 - $132.00
  • $264.99
  • Save $133 (50%)
5.0 (5)
Best Seller

API E.M. Erythromycin

$14.99 - $541.00
  • $1,082.99
  • Save $542 (50%)
4.7 (3)
Best Seller

API Freshwater Master Test Kit

$24.59 - $71.56
  • $143.99
  • Save $72 (50%)
4.8 (44)
Best Seller

API Filstar XP Super Microfiltration Pads

$7.99 - $45.54
  • $91.99
  • Save $47 (50%)
4.9 (11)
Best Seller

API Pond Pond Salt

$10.99 - $72.16
  • $144.99
  • Save $73 (50%)
4.5 (4)

API Safe and Easy Aquarium Cleaner

$7.86 - $22.39
  • $38.99
  • Save $17 (43%)
5.0 (3)
Best Seller

API Pond Simply-Clear Pond Clarifier

$12.99 - $284.00
  • $74.99
  • Save $38 (51%)
4.8 (6)
Best Seller

API Quick Start Water Conditioner

$2.49 - $182.00
  • $364.99
  • Save $183 (50%)
5.0 (1)

API Bottom Feeder Premium Shrimp Pellet Food

$2.59 - $29.53
  • $56.99
  • Save $28 (48%)
5.0 (1)
Best Seller

API Pond Ecofix Sludge Destroyer

$14.29 - $262.00
  • $524.99
  • Save $263 (50%)
4.5 (12)

API Water Chemical Products

As leaders in the ornamental fish industry since the early 1960s, they are very vigilant about superior product quality and taking care of their aquarium and fish enthusiast customers. They make a wide line or products including stress coat, stress zyme, Melafix and many others. If you are serious about fish and ensuring your aquarium is perfectly suited for them, then you know how important medications, algae control, Water Treatment and Filters are to the health of your fish.The great thing about Aquarium Pharmaceuticals is that they are focused intently on research and development, always attempting to make their products better, more efficient and less expensive. They even have 150 experimental aquariums and ponds in their state-of-the-art research laboratory, so they can develop innovative, new products. The goal? Products that are easy and convenient for you to use.

API - Water Test Kits, Water Conditioner, Medication, Softener Pillow

As a top tier Aquarium Pharmaceuticals supplier, we have the top API products right here on our site. We carry their best fresh and saltwater test kits, water conditioner, and softener pillow for your pond or aquarium.Choose from our big selection. You'll find everything you need to keep your fish happy. Can't find something? Let us know; we'd be happy to help you select the best product for you and your fishes' needs.