Editor's Choice - Our Favorite API Fish Health Supplies

1. API Aquarium Test Kit

User Ratings: 85 1

API 34 First Impressions

"I bought the Aqueon 2."

This will retain much of the bacteria needed. It's far superior to manually scooping out the water from the fish tank. Initially this was used as a sample packet came with our aquarium. Aquarium tubing is scarce where I live during the pandemic. So they fit in my Tetra filter for the fish tank. In terms of taking water out, it's great. Affluent Romans kept their water and wine in silver flasks for the same reason.

  • API Aquarium Test Kit
  • Contains one (1) API FRESHWATER MASTER TEST KIT 800-Test Freshwater Aquarium Water Master Test Kit, including 7 bottles of testing solutions, 1 color card and 4 glass tubes with cap
  • Helps monitor water quality and prevent invisible water problems that can be harmful to fish and cause fish loss
  • Accurately monitors 5 most vital water parameters levels in freshwater aquariums: pH, high range pH, ammonia, nitrite, nitrate
  • Designed for use in freshwater aquariums only
  • Use for weekly monitoring and when water or fish problems appear
  • Manufacture: Aquarium Pharmaceuticals
  • Product Dimensions: 9.13 x 3.5 x 4.63 inches; 1.15 Pounds
  • Editor's Impressions Of The API 34
  • Quality
  • Value For Money
  • Affordability

API 34 Final Thoughts

"My betta lives in this 2."

In terms of taking water out, it's great. I even poured in extra to help with the healing. I am able to use each cartridge for about 5 weeks, before it needs to be replaced. I bought this to attach to my Tetra whisper 20. My tank is always clean now and the fish are growing and happy! 5 gallon Top Fin Enchant Aquarium that I got from PetSmart. I'm glad Amazon had these small cartridges.

Overall Score
4.8


(12647 Points)

Peoples Choice - Other Highly Rated API Fish Health Supplies

2. API TAP Water Conditioner, Instantly neutralizes Chlorine, chloramines and Other Chemicals to Make t...

User Ratings: 83 2

API 52C First Impressions

"Have it on low speed."

Then I went ahead and bought a huge pack of them. Fish possess an antioxidant defense system to reduce the negative effects of ROS. I bought this airline tubing to work with my air pump. The filters are expensive to replace and only so-so quality. I had a parasite problem, and had to heal my fishes scales and fins. The auction begins with just a few squeezes even my young nephew could do it. So, lots of snipping and fitting on various stems.

  • API TAP Water Conditioner, Instantly neutralizes Chlorine, chloramines and Other Chemicals to Make tap Water Safe for Fish, Highly Concentrated, Use When Adding or Changing Water and When Adding Fish
  • Contains one (1) API TAP WATER CONDITIONER Aquarium Water Conditioner 16-Ounce Bottle
  • Neutralizes chlorine, chloramines and other chemicals to make tap water safe for fish
  • Prevents tap water chemicals from causing gill destruction, tissue irritation and fish death
  • Super strength, high concentration formula
  • Use when adding or changing water and when adding new fish to freshwater and saltwater aquariums
  • Manufacture: Aquarium Pharmaceuticals
  • Product Dimensions: 2.5 x 2.5 x 8.75 inches; 1.2 Pounds
  • Editor's Impressions Of The API 52C
  • Quality
  • Value For Money
  • Affordability

API 52C Final Thoughts

"I have a BioCube 29."

If you're treating injured fins or introducing new fish, this is for you. I've been using these filters in my aquarium for years. Water stays nice and clear, minus the odd algae bloom. I even poured in extra to help with the healing. It DOES fit, you just have to spend a few minutes getting it on. Great price for filters that are ready to go, with no assembly required. I am able to use each cartridge for about 5 weeks, before it needs to be replaced.

Overall Score
4.7


(8174 Points)

3. API Stress Coat Water Conditioner, Makes tap Water Safe, Replaces fish's Protective Coat Damaged by ...

User Ratings: 87 1

API 85C First Impressions

"I am new to the hobby."

I love all of the API products, especially their easy to use test kits. I was impressed at the suction and speed of this little tool. Overall, these are easy to use filters& seem to do a good job. I have never had one tear or fall apart under any circumstances. I had a parasite problem, and had to heal my fishes scales and fins. Sure enough they are back to their healthy coloration and didn't end up dying on me. Washed with hot water several times to get rid of it.

  • API Stress Coat Water Conditioner, Makes tap Water Safe, Replaces fish's Protective Coat Damaged by handling or Fish Fighting, Use When Adding or Changing Water, Adding Fish and When Fish are Injured
  • Contains one (1) API STRESS COAT Aquarium Water Conditioner 16-Ounce Bottle
  • Makes tap water safe and protects fish with dual-action formula
  • Removes chemicals from tap water that are harmful to fish
  • Replaces fish’s protective coat damaged by handling, shipping or fish fighting with healing power of Aloe Vera extract
  • Use when adding or changing water, when adding new fish and when fish are sick or injured
  • Manufacture: Aquarium Pharmaceuticals
  • Product Dimensions: 5 x 1 x 5 inches; 6.4 Ounces
  • Editor's Impressions Of The API 85C
  • Quality
  • Value For Money
  • Affordability

API 85C Final Thoughts

"This is great fish food."

This is my go to water conditioner and stressed fish treatment. Then I went ahead and bought a huge pack of them. A few names we've had were Carlos, Phobe, Feesh, and Chaz. My tank is always clean now and the fish are growing and happy! Couldn't find this at the local pet store and it was cheaper online. I must've measured correctly because it fits great! When they disinfect a repair site, they are normally only using chlorine.

Overall Score
4.8


(7908 Points)

4. API Test Strips, for Variety of Water Parameters, Monitor Aquarium Water Quality and Help Prevent In...

User Ratings: 74 3

API 33G First Impressions

"Great price."

It doesn't just quickly slip on, and there's a reason for that. I decant this to a small 5 oz squeeze bottle and leave the rest in the fridge. I like to sit eye level with the tank substrate to see exactly what I am cleaning. You just give it some squeezes, and the outpouring begins and doesn't take forever. From their own colon or a hole in the ground. I bought this airline tubing to work with my air pump. I had a parasite problem, and had to heal my fishes scales and fins.

  • API Test Strips, for Variety of Water Parameters, Monitor Aquarium Water Quality and Help Prevent Invisible Water Problems That can be Harmful to Fish, Use Weekly and When Problems Appear
  • Contains one (1) API 5-IN-1 TEST STRIPS Freshwater and Saltwater Aquarium Test Strips 25-Count Box
  • Monitors levels of pH, nitrite, nitrate carbonate and general water hardness in freshwater and saltwater aquariums
  • Dip test strips into aquarium water and check colors for fast and accurate results
  • Helps prevent invisible water problems that can be harmful to fish and cause fish loss
  • Use for weekly monitoring and when water or fish problems appear
  • Manufacture: Mars Fishcare Inc.
  • Product Dimensions: 3.5 x 1.75 x 6.5 inches; 3.36 Ounces
  • Editor's Impressions Of The API 33G
  • Quality
  • Value For Money
  • Affordability

API 33G Final Thoughts

"Contains 2 bottles."

Lastly, the hand pump primes very quickly and the water flow is wonderful. I am able to use each cartridge for about 5 weeks, before it needs to be replaced. 5 years now and I truly believe they help keep the humidifier and water cleaner. If you have a freshwater fish tank, I highly recommend this product. 5 gallon Top Fin Enchant Aquarium that I got from PetSmart. I have several similar products this one is my favorite. Works great to keep the purification process going in the humidifier.

Overall Score
4.5


(6977 Points)

Honorable Mentions - More Top Selling API Fish Health Supplies

5. API Aquarium Salt, Promotes Fish Health and Disease Recovery in Freshwater Aquariums, Use When Chang...

User Ratings: 85 1

API 106C First Impressions

"They do the job well!"

I was impressed at the suction and speed of this little tool. I recommend these above all other filter cartridges I have ever used. I can't find them any where's else. Before I did anything with my tank Saturday the TDS reading was in the hight 900's. The chloramines contain a small amount of ammonia. Exactly the same item I purchased from a local store for alot more money! I'm not sure what's going on with this 1.

  • API Aquarium Salt, Promotes Fish Health and Disease Recovery in Freshwater Aquariums, Use When Changing Water, When Setting up a New Freshwater Aquarium and When Treating Fish Disease
  • Contains one (1) API AQUARIUM SALT Freshwater Aquarium Salt 65-Ounce Box
  • Promotes fish health and disease recovery with increased electrolytes
  • Improves respiration for fish in freshwater aquariums
  • Made from evaporated sea water for all-natural results
  • Use when changing water, when setting up a new freshwater aquarium and when treating fish disease
  • Manufacture: Aquarium Pharmaceuticals
  • Product Dimensions: 8 x 8 x 10 inches; 4 Pounds
  • Editor's Impressions Of The API 106C
  • Quality
  • Value For Money
  • Affordability

API 106C Final Thoughts

"I promise you it fits."

In the morning I awoke with my fish at the bottom barely able to move. If you're serious about fish keeping, always quarantine and always use Stress Coat! Affluent Romans kept their water and wine in silver flasks for the same reason. It doesn't just quickly slip on, and there's a reason for that. I use water from the tank, but you can use treated water. He's still cute and my son loves him but I was surprised by the color. I bought this to attach to my Tetra whisper 20.

Overall Score
4.8


(4956 Points)

6. API Algae SCRAPERS and Hand HELD Pads for Acrylic Aquariums

User Ratings: 71 2

API 21 First Impressions

"I totally recommend this."

Thanks to the Amazon reviewer who mentioned this! I swim 5x week and usually my suits last about 2 months. These filters get the job done, but do plug up quickly when my water is that gross. I used to use AmQuel years ago and then spent years out of the aquarium hobby. The filters are expensive to replace and only so-so quality. Sure enough they are back to their healthy coloration and didn't end up dying on me. However if you want a stress coat, this is perfect.

  • API Algae SCRAPERS and Hand HELD Pads for Acrylic Aquariums
  • Contains one (1) API ALGAE SCRAPER For Glass Aquariums 1-Count Container
  • Extra long and extra strong scraper for glass aquariums.
  • Quickly removed unsightly algae.
  • Extra-long handle keeps your hand from getting wet and supports durable scrubbing pad.
  • For use in glass aquariums only. Not for use on acrylic, plexiglass, or any surface other than glass. Do not use on dry surfaces. Rinse pad with tap water before and after each use.
  • Manufacture: Aquarium Pharmaceuticals
  • Product Dimensions: 2.5 x 3.25 x 18 inches; 3.53 Ounces
  • Editor's Impressions Of The API 21
  • Quality
  • Value For Money
  • Affordability

API 21 Final Thoughts

"5 ga beta fish bowl."

This water conditioner is a life saver! I haven't tried looking for alternative brands. I don't have to work a hard as I did before just to clean my tank. I bought this airline tubing to work with my air pump. I will purchase this again when needed. The auction begins with just a few squeezes even my young nephew could do it. I wish the length of the section that is in the tank was about a foot longer.

Overall Score
4.5


(4125 Points)

7. API Aquarium Algae Remover

User Ratings: 68 8

API 87E First Impressions

"8 degrees."

Exactly the same item I purchased from a local store for alot more money! Lastly, the hand pump primes very quickly and the water flow is wonderful. Also some granules of activated carbon will fall out when you rinse them. Put in last night and my water is crystal clear. Now our fish have grown and we've added live plants. In the morning I awoke with my fish at the bottom barely able to move. It DOES fit, you just have to spend a few minutes getting it on.

  • API Aquarium Algae Remover
  • Contains one (1) API ALGAEFIX Algae Control Solution 16-Ounce Bottle
  • Controls algae growth and keeps aquarium glass, ornaments and plants clean
  • Fast-acting and effective on "green water" algae blooms, string or hair algae and others
  • Safe for freshwater fish and plants when used as directed
  • Dose every three days until algae is under control then dose weekly
  • Manufacture: Aquarium Pharmaceuticals
  • Product Dimensions: 2 x 2 x 6 inches; 3.2 Ounces
  • Editor's Impressions Of The API 87E
  • Quality
  • Value For Money
  • Affordability

API 87E Final Thoughts

"But does an amazing job."

As dirty as the larger fish are theses cartridges keep mytanls crystal clean. The little fish is super cute in my humidifier. As dirty as the larger fish are theses cartridges keep mytanls crystal clean. I can't find them any where's else. I used to use AmQuel years ago and then spent years out of the aquarium hobby. Aquarium tubing is scarce where I live during the pandemic. Thanks to the Amazon reviewer who mentioned this!

Overall Score
4.3


(4050 Points)

8. API Quick Start Nitrifying Bacteria, for Freshwater and Saltwater Aquarium

User Ratings: 83 2

API 89E First Impressions

"And he is a betta."

I really do need 1 that flows on its own. The ridges interfere with moving the hose around in the tank. I must've measured correctly because it fits great! This tool has made maintenance so much more easy and efficient. More doesn't hurt anything, but it's just wasted. This piping and some electrical tape made it quiet again. Always needing to wash it out, with only 1 small catfish in the tank right now.

  • API Quick Start Nitrifying Bacteria, for Freshwater and Saltwater Aquarium
  • Contains one (1) API QUICK START Freshwater and Saltwater Aquarium Nitrifying Bacteria 16-Ounce Bottle
  • Allows instant addition of fish when starting a new aquarium
  • Reduces compounds harmful to fish when used routinely
  • Helps prevent fish loss in freshwater and saltwater aquariums
  • Use when starting a new aquarium, when adding new fish and when changing water and filter media
  • Manufacture: Aquarium Pharmaceuticals
  • Product Dimensions: 2.5 x 2.5 x 8.75 inches; 0.32 Ounces
  • Editor's Impressions Of The API 89E
  • Quality
  • Value For Money
  • Affordability

API 89E Final Thoughts

"Great price as well!"

The tap water was coming out around 836ppm. Now our fish have grown and we've added live plants. Have them on subscribe and save now. If it it quickly slip on then it wouldn't be as secure and tight as it needs to be. Excellent product, you simply can't beat the price and shipping was bullet fast. We use it when we clean& change out water. I really do need 1 that flows on its own.

Overall Score
4.7


(3963 Points)

9. API Stress Zyme Bacterial Cleaner, Freshwater and Saltwater Aquarium Water Cleaning Solution

User Ratings: 85 1

API 56E First Impressions

"Subtracted from the tank."

These filters get the job done, but do plug up quickly when my water is that gross. Couldn't find this at the local pet store and it was cheaper online. Excellent product, you simply can't beat the price and shipping was bullet fast. In the last two months I have seen this product work its gold. We've got 2 in ours even though the package says to only use one. I used one gallon of reverse osmosis and the rest tap. Frequently changing the filter messes with the aquarium nitrogen cycle.

  • API Stress Zyme Bacterial Cleaner, Freshwater and Saltwater Aquarium Water Cleaning Solution
  • Contains one (1) API STRESS ZYME Freshwater and Saltwater Aquarium Cleaning Solution 16-Ounce Bottle
  • Keeps freshwater and saltwater aquariums clean and reduces maintenance
  • Consumes sludge to help keep gravel and decorations clean
  • Adds beneficial bacteria for a healthy aquarium
  • Use weekly to maintain a clean, healthy aquarium
  • Manufacture: Aquarium Pharmaceuticals
  • Product Dimensions: 10 x 10 x 10 inches; 1.2 Pounds
  • Editor's Impressions Of The API 56E
  • Quality
  • Value For Money
  • Affordability

API 56E Final Thoughts

"The hotter, the faster."

The siphon works well and does what it should. It only requires 3 drops per gallon you add to your tank. Couldn't find this at the local pet store and it was cheaper online. You just give it some squeezes, and the outpouring begins and doesn't take forever. If placed the other way, the carbon can be pushed out into the aquarium. Water stays nice and clear, minus the odd algae bloom. So, lots of snipping and fitting on various stems.

Overall Score
4.8


(3784 Points)

10. API Turtle Products: Sludge Remover to Clean Aquarium, Water Conditioner to Make Tap Water Safe for ...

User Ratings: 76 2

API 441D First Impressions

"Thank goodness!"

Fish possess an antioxidant defense system to reduce the negative effects of ROS. I will purchase this again when needed. We've got 2 in ours even though the package says to only use one. I use water from the tank, but you can use treated water. I have done this a several times with great results. No observable signs of stress in the fish. I am able to use each cartridge for about 5 weeks, before it needs to be replaced.

  • API Turtle Products: Sludge Remover to Clean Aquarium, Water Conditioner to Make Tap Water Safe for Turtles, TURTLEFIX Remedy to treat bacterial infections and repair damaged tissue
  • Beneficial bacterial
  • Breaks down waste and debris
  • Cleans Aquarium
  • Manufacture: Mars Fishcare Inc.
  • Product Dimensions: 2 x 2 x 7.5 inches; 10.4 Ounces
  • Editor's Impressions Of The API 441D
  • Quality
  • Value For Money
  • Affordability

API 441D Final Thoughts

"Works like a charm."

I have used marine land bio-wheel pump and filters for the past 20 yrs. I have never had one tear or fall apart under any circumstances. Don't claim to be an expert, but I've never heard of that. Great price for filters that are ready to go, with no assembly required. When they disinfect a repair site, they are normally only using chlorine. This piping and some electrical tape made it quiet again. But intjink it has alot more to do with the pump rather than the tube.

Overall Score
4.6


(3713 Points)

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