Best Freshwater Aquarium Supplies 2026: According to Reviews | Chewy

Best Freshwater Aquarium Supplies

Keeping a freshwater aquarium running smoothly often means having the right supplies on hand for feeding, cleaning, water care, and everyday maintenance. Aquarium setups can vary widely, so different tools and accessories may suit different tanks and routines. Reliable and easy-to-use freshwater aquarium supplies for essential tasks can help make regular care feel more manageable while supporting a healthier tank environment.

Our Top Picks

How we created this freshwater aquarium supply list

We leveraged input from our veterinarians and artificial intelligence to identify key considerations to help you find the best freshwater aquarium supply.
We scanned thousands of customer reviews and ratings and scored each product based on its performance against each of the key considerations. We then considered how popular a product is with Chewy customers and combined that with its key consideration scores to create the list of the best freshwater aquarium supplies.

Key freshwater aquarium supply considerations

Compatibility

Durability

Ease of Use

Functionality

1
TetraMin Tropical Flakes Fish Food, 0.42-oz jar
TetraMin Tropical Flakes Fish Food, 0.42-oz jar
TetraMin Tropical Flakes Fish Food, 0.42-oz jar
TetraMin Tropical Flakes Fish Food, 0.42-oz jar
TetraMin Tropical Flakes Fish Food, 0.42-oz jar
TetraMin Tropical Flakes Fish Food, 0.42-oz jar

Tetra Min Tropical Flakes Fish Food, 0.42-oz jar

Rated 4.8 out of 5 stars
1,521
$2.99 Chewy Price
($7.12/oz)
Promo, New Customers Only: Spend $49+, get $25 eGift Card

Our ratings

Compatibility

4.5/5
Great

Durability

4.6/5
Excellent

Ease of Use

4.6/5
Excellent

Functionality

4.5/5
Great

Is this freshwater aquarium supply right for my pet?

Top Ingredients

Fish Meal, Dried Yeast, Ground Brown Rice, Shrimp Meal, Wheat Gluten

Special Diet

Vitamin Fortified, Prebiotic, High-Protein

Fish Type

Tropical Freshwater

Food Form

Flakes
2
API Stress Coat Aquarium Water Conditioner, 1-fl oz bottle
API Stress Coat Aquarium Water Conditioner, 1-fl oz bottle
API Stress Coat Aquarium Water Conditioner, 1-fl oz bottle
API Stress Coat Aquarium Water Conditioner, 1-fl oz bottle
API Stress Coat Aquarium Water Conditioner, 1-fl oz bottle
API Stress Coat Aquarium Water Conditioner, 1-fl oz bottle

API Stress Coat Aquarium Water Conditioner, 1-fl oz bottle

Rated 4.8 out of 5 stars
826
$2.28 Chewy Price
($2.28/fl oz)
Promo, New Customers Only: Spend $49+, get $25 eGift Card

Our ratings

Compatibility

4.6/5
Excellent

Durability

4.6/5
Excellent

Ease of Use

4.6/5
Excellent

Functionality

4.6/5
Excellent

Is this freshwater aquarium supply right for my pet?

Aquarium Type

Saltwater, Freshwater

Fish Type

Betta, Bottom Feeder, Cichlid, Goldfish...

Health Feature

Anti-Fungal / Anti-Bacterial
3
Aqueon Shrimp Pellets Fish Food, 3.25-oz jar.
Aqueon Shrimp Pellets Fish Food, 3.25-oz jar.
Aqueon Shrimp Pellets Fish Food, 3.25-oz jar.
Aqueon Shrimp Pellets Fish Food, 3.25-oz jar.
Aqueon Shrimp Pellets Fish Food, 3.25-oz jar.
Aqueon Shrimp Pellets Fish Food, 3.25-oz jar.
Aqueon Shrimp Pellets Fish Food, 3.25-oz jar.
Aqueon Shrimp Pellets Fish Food, 3.25-oz jar.
Aqueon Shrimp Pellets Fish Food, 3.25-oz jar.

Aqueon Shrimp Pellets Fish Food, 3.25-oz jar.

Rated 4.7 out of 5 stars
692
$6.49 Chewy Price
($2.00/oz)
Promo, New Customers Only: Spend $49+, get $25 eGift Card

Our ratings

Compatibility

4.5/5
Great

Durability

4.5/5
Great

Ease of Use

4.5/5
Great

Functionality

4.5/5
Great

Is this freshwater aquarium supply right for my pet?

Top Ingredients

Shrimp Meal, Whole Fish Meal (Whole Salmon, Herring & Other Mixed Fishes), Whole Wheat Flour, Fish Oil

Special Diet

Natural

Aquarium Type

Freshwater

Fish Type

Bottom Feeder, Goldfish, Tropical Freshwater
4
Marineland Bio-Wheel Penguin Rite-Size C Filter Cartridge, 1 count
Marineland Bio-Wheel Penguin Rite-Size C Filter Cartridge, 1 count
Marineland Bio-Wheel Penguin Rite-Size C Filter Cartridge, 1 count
Marineland Bio-Wheel Penguin Rite-Size C Filter Cartridge, 1 count

Marineland Bio-Wheel Penguin Rite-Size C Filter Cartridge, 1 count

Rated 4.7 out of 5 stars
859
$3.68 Chewy Price
($3.68/ea)
Promo, New Customers Only: Spend $49+, get $25 eGift Card

Our ratings

Compatibility

4.4/5
Great

Durability

4.3/5
Great

Ease of Use

4.5/5
Great

Functionality

4.4/5
Great

Is this freshwater aquarium supply right for my pet?

Material

Foam

Aquarium Type

Saltwater, Freshwater

Fish Type

Marine Fish, Tropical Freshwater
5
Fluker's Freeze-Dried River Shrimp Reptile Treats, 1-oz jar
Fluker's Freeze-Dried River Shrimp Reptile Treats, 1-oz jar

Fluker's Freeze-Dried River Shrimp Reptile Treats, 1-oz jar

Rated 4.7 out of 5 stars
308
$3.37 Chewy Price
($3.37/oz)
Promo, Buy 3, get 4th free- mix & match

Our ratings

Compatibility

4.8/5
Excellent

Durability

4.5/5
Great

Ease of Use

4.6/5
Excellent

Functionality

4.7/5
Excellent

Is this freshwater aquarium supply right for my pet?

Top Ingredient

Freeze-Dried River Shrimp

Special Diet

Natural

Fish Type

Tropical Freshwater

Food Form

Freeze-Dried, Treats, Shrimp
6
AquaClear 50 Activated Carbon Filter Insert, 3 count
AquaClear 50 Activated Carbon Filter Insert, 3 count
AquaClear 50 Activated Carbon Filter Insert, 3 count
AquaClear 50 Activated Carbon Filter Insert, 3 count

AquaClear 50 Activated Carbon Filter Insert, 3 count

Rated 4.8 out of 5 stars
114
$9.99 Chewy Price
($3.33/ea)
Promo, New Customers Only: Spend $49+, get $25 eGift Card

Our ratings

Compatibility

4.5/5
Great

Durability

4.5/5
Great

Ease of Use

4.5/5
Great

Functionality

4.6/5
Excellent

Is this freshwater aquarium supply right for my pet?

Material

Synthetic Fabric, Mesh

Aquarium Type

Saltwater, Freshwater

Fish Type

Marine Fish, Tropical Freshwater
7
CaribSea Super Naturals Crystal River Freshwater Sand, 20-lb bag
CaribSea Super Naturals Crystal River Freshwater Sand, 20-lb bag

CaribSea Super Naturals Crystal River Freshwater Sand, 20-lb bag

Rated 4.9 out of 5 stars
89
$23.79 Chewy Price
($1.19/lb)
Promo, New Customers Only: Spend $49+, get $25 eGift Card

Our ratings

Compatibility

4.5/5
Great

Durability

4.6/5
Excellent

Ease of Use

4.7/5
Excellent

Functionality

4.4/5
Great

Is this freshwater aquarium supply right for my pet?

Aquarium Type

Freshwater

Fish Type

Tropical Freshwater
8
Python No Spill Clean & Fill Aquarium Maintenance System, 25-ft

Python No Spill Clean & Fill Aquarium Maintenance System, 25-ft

Rated 4.5 out of 5 stars
569
$59.49 Chewy Price
Promo, New Customers Only: Spend $49+, get $25 eGift Card

Our ratings

Compatibility

4.5/5
Great

Durability

4.4/5
Great

Ease of Use

4.6/5
Excellent

Functionality

4.5/5
Great

Is this freshwater aquarium supply right for my pet?

Material

Plastic

Aquarium Type

Saltwater, Freshwater

Fish Type

Betta, Cichlid, Goldfish, Marine Fish...
9
Zoo Med Pleco Banquet Block Fish Food, .45-oz
Zoo Med Pleco Banquet Block Fish Food, .45-oz
Zoo Med Pleco Banquet Block Fish Food, .45-oz
Zoo Med Pleco Banquet Block Fish Food, .45-oz
Zoo Med Pleco Banquet Block Fish Food, .45-oz

Zoo Med Pleco Banquet Block Fish Food, .45-oz

Rated 4.5 out of 5 stars
275
$1.39 Chewy Price
($3.09/oz)
Promo, New Customers Only: Spend $49+, get $25 eGift Card

Our ratings

Compatibility

4.4/5
Great

Durability

4.5/5
Great

Ease of Use

4.5/5
Great

Functionality

4.6/5
Excellent

Is this freshwater aquarium supply right for my pet?

Top Ingredients

Calcium Sulfate, Plankton, Powdered Cellulose, Spirulina Algae, Magnesium Sulfate

Special Diet

High Calcium

Aquarium Type

Freshwater

Fish Type

Bottom Feeder, Tropical Freshwater
10
Fluval Bug Bites Tropical Freshwater Formula Small Granules Fish Food, 1.6-oz
Fluval Bug Bites Tropical Freshwater Formula Small Granules Fish Food, 1.6-oz
Fluval Bug Bites Tropical Freshwater Formula Small Granules Fish Food, 1.6-oz
Fluval Bug Bites Tropical Freshwater Formula Small Granules Fish Food, 1.6-oz
Fluval Bug Bites Tropical Freshwater Formula Small Granules Fish Food, 1.6-oz
Fluval Bug Bites Tropical Freshwater Formula Small Granules Fish Food, 1.6-oz
Fluval Bug Bites Tropical Freshwater Formula Small Granules Fish Food, 1.6-oz

Fluval Bug Bites Tropical Freshwater Formula Small Granules Fish Food, 1.6-oz

Rated 4.7 out of 5 stars
177
$5.94 Chewy Price
($3.72/oz)
Promo, New Customers Only: Spend $49+, get $25 eGift Card

Our ratings

Compatibility

4.4/5
Great

Durability

4.6/5
Excellent

Ease of Use

4.3/5
Great

Functionality

4.2/5
Great

Is this freshwater aquarium supply right for my pet?

Top Ingredients

Dried Black Soldier Fly Larvae, Salmon, Fish Protein Concentrate, Green Peas, Potato

Special Diet

High-Protein

Fish Type

Tropical Freshwater

Food Form

Sinking Pellets

Frequently Asked Questions about Freshwater Aquarium Supplies

What supplies do I need for a freshwater aquarium?

The right setup depends on the fish and other aquatic pets you plan to keep, but common freshwater aquarium essentials include a properly sized tank, filter, water conditioner, thermometer, lighting, and species-appropriate food. Some setups also need a heater, substrate, plants, or hiding places. Research your pets' specific needs before setting up the aquarium so you can choose compatible supplies.

Are no-spill water-change systems useful for freshwater tanks, and how should I handle water conditioner when using one?

No-spill systems can speed up partial water changes by letting you siphon and refill directly from a faucet, which is especially helpful on larger aquariums. When refilling with tap water, use a freshwater conditioner as directed on the bottle for the amount of new water, either into the stream as you refill or into the tank just before the new water goes in. Matching temperature and keeping a consistent change schedule help minimize stress on fish.