Tropical Fish Tank Health & Water Care

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Salifert Aquarium Nitrite Test Kit

Rated 5 out of 5 stars
2
$12.99 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

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Dr. Tim's Aquatics Eco-Balance Freshwater Aquarium Cleaner, 8-fl oz bottle slide 1 of 5
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Dr. Tim's Aquatics Eco-Balance Freshwater Aquarium Cleaner, 8-fl oz bottle slide 1 of 5
Dr. Tim's Aquatics Eco-Balance Freshwater Aquarium Cleaner, 8-fl oz bottle slide 2 of 5
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Dr. Tim's Aquatics Eco-Balance Freshwater Aquarium Cleaner, 8-fl oz bottle slide 1 of 5
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Dr. Tim's Aquatics Eco-Balance Freshwater Aquarium Cleaner, 8-fl oz bottle slide 1 of 5
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Dr. Tim's Aquatics Eco-Balance Freshwater Aquarium Cleaner, 8-fl oz bottle

$17.09 Chewy Price
($2.14/oz) Price per Unit
$20.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Dennerle Carbo Elixier Bio Aquarium Plant Fertilizer, 500-mL bottle

Rated 3 out of 5 stars
2
$33.50 Chewy Price
($0.07/mL) Price per Unit
Autoship Price

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Apr 12 and Apr 16

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API pH Freshwater & Saltwater Aquarium Test Strips, 25 count slide 1 of 5
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API pH Freshwater & Saltwater Aquarium Test Strips, 25 count

Rated 4.4 out of 5 stars
10
$14.31 Chewy Price
($0.58/ea) Price per Unit
$18.28 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Dr. Tim's Aquatics Clear-Up Freshwater Aquarium Cleaner, 32-fl oz bottle

Rated 4.7 out of 5 stars
3
$48.59 Chewy Price
($1.52/fl oz) Price per Unit
Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Apr 13 and Apr 16

Salifert Aquarium Ammonia Test Kit

Rated 4.1 out of 5 stars
8
$13.99 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Aqueon Ammonia Aquarium Test Strips, 50 count

Rated 4.5 out of 5 stars
11
$13.19 Chewy Price
($0.27/ea) Price per Unit
$17.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Boyd Chemi-Clean Red Cyanobacteria Aquarium Treatment, 2-g

Rated 4.8 out of 5 stars
20
$17.99 Chewy Price
($9.00/g) Price per Unit
$24.01 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Microbe-Lift Aquatic Stress Relief Aquarium Treatment, 16-oz bottle

Rated 4.5 out of 5 stars
2
$10.36 Chewy Price
($0.65/oz) Price per Unit
$17.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Fritz Mardel Coppersafe Fish Medication, 4-fl oz bottle

Rated 4.7 out of 5 stars
18
$10.39 Chewy Price
($2.60/fl oz) Price per Unit
$12.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Pure Water Pebbles Bio-Activ Live African Cichlid Aquarium Substrate, Rift Lake, 20-lb bag

Rated 4.7 out of 5 stars
49
$26.25 Chewy Price
($1.32/lb) Price per Unit
$27.02 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Fluval Phosphate Fish Water Test Kit

Rated 5 out of 5 stars
1
$18.99 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Dr. Tim's Aquatics Waste-Away Gel Plant Water Conditioner, Small, 1 count

$11.59 Chewy Price
($11.59/ea) Price per Unit
$14.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Dennerle CO2 Mini-Flipper Fish Aquarium Diffuser

Rated 5 out of 5 stars
1
$42.00 Chewy Price
Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Apr 12 and Apr 16

API Nitrite NO2 Fresh & Salt Water Aquarium Test Kit, 180 count

Rated 5 out of 5 stars
6
$12.50 Chewy Price
($0.07/ea) Price per Unit
$16.78 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

API Melafix Freshwater Fish Bacterial Infection Remedy, 64-fl oz bottle

Rated 4.8 out of 5 stars
18
$73.66 Chewy Price
($1.16/fl oz) Price per Unit
$100.38 List Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Salifert Aquarium Oxygen Test Kit

Rated 4.7 out of 5 stars
6
$14.89 Chewy Price
$16.09 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

AquaZen CO2 Mini Regulator with Solenoid

$140.00 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Penn-Plax Pro-Carb Aquarium Cleaner, 28-oz bottle

Rated 5 out of 5 stars
1
$20.99 Chewy Price
($0.75/oz) Price per Unit
$24.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Microbe-Lift TheraP Aquarium Fish Water Treatment, 16-oz bottle

Rated 3.3 out of 5 stars
7
$16.64 Chewy Price
($1.04/oz) Price per Unit
$19.55 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

API Ammonia NH3/NH4 Freshwater & Saltwater Aquarium Test Strips, 25 count

Rated 4.3 out of 5 stars
13
$16.98 Chewy Price
($0.68/ea) Price per Unit
$23.98 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Eheim Adjustable Fish Aquarium Air Diffuser

Rated 5 out of 5 stars
4
$6.95 Chewy Price
$9.08 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Fluval Fresh pH Low Range Fish Water Test Kit

Rated 5 out of 5 stars
1
$13.99 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Dr. Tim's Aquatics Shrimp Water Conditioner, 32-fl oz bottle

$8.56 Chewy Price
($0.27/fl oz) Price per Unit
$8.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Dennerle NPK Booster Macro-Fertilizer Aquarium Plant Fertilizer, 100-mL bottle

Rated 4.3 out of 5 stars
6
$12.99 Chewy Price
($0.13/mL) Price per Unit
Autoship Price

Free delivery on first-time orders over $35
Free 365-day returns
Arrives between Apr 12 and Apr 16

Dennerle Shrimp King Shrimp Active Aquarium Soil, 4-L bag

Rated 5 out of 5 stars
3
$35.00 Chewy Price
($8.75/l) Price per Unit
Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Apr 12 and Apr 16

Dr. Tim's Aquatics Re-Fresh Freshwater Aquarium Cleaner, 32-fl oz bottle

$77.39 Chewy Price
($2.42/fl oz) Price per Unit
Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Apr 13 and Apr 16

Salifert Aquarium Copper Test Kit

Rated 5 out of 5 stars
2
$16.97 Chewy Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Dennerle Nano Bio CO2 Water Care Treatment Set, 12.6-oz bottle

Rated 1 out of 5 stars
2
$38.07 Chewy Price
($3.03/oz) Price per Unit
Autoship Price

Free delivery on first-time orders
Free 365-day returns
Arrives between Apr 12 and Apr 16

Kordon Fish Protector Aquarium Water Conditioner, 16-fl oz bottle

Rated 4.6 out of 5 stars
7
$10.99 Chewy Price
($0.69/fl oz) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Ruby Reef HydroPlex Aquarium Water Treatment, 64-fl oz bottle

Rated 4.6 out of 5 stars
8
$30.25 Chewy Price
($0.48/fl oz) Price per Unit
$36.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Fluval Mini Master Fish Water Test Kit

Rated 3.4 out of 5 stars
5
$49.89 Chewy Price
$50.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Dr. Tim's Aquatics Freshwater Waste-Away Aquarium Cleaner, 4-fl oz bottle

$11.89 Chewy Price
($2.98/oz) Price per Unit
$14.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Aqueon AquaPacs Aquarium Water Conditioner, 12 pack, 10-gal

Rated 4.5 out of 5 stars
12
$13.47 Chewy Price
($0.12/gl) Price per Unit
$16.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

OASE Indoor Aquatics ScaperLine 3 Fish Soil, Brown

Rated 5 out of 5 stars
2
$32.99 Chewy Price
($32.99/ea) Price per Unit
Autoship Price

Free 1-3 day delivery on first-time orders over $35
Free 365-day returns

Dr. Tim's Aquatics NP-Active Pearls for Nutrient Control in Aquariums, 450-mL bottle

Rated 4.7 out of 5 stars
3
$37.00 Chewy Price
($0.09/mL) Price per Unit
$45.99 List Price
Autoship Price

Free 1-3 day delivery on first-time orders
Free 365-day returns

Save 5% on repeat deliveries

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