Editor's Choice - Our Favorite API Aquarium Water Treatments

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

User Ratings: 83 2

API 52C First Impressions

"A MUST BUY!"

Use a heater and crank it to 82 degrees again without fish in the tank. It is just as good when compared to other brands of conditioner. Dealing with biological cloudiness in my tank for some time. More doesn't hurt anything, but it's just wasted. If you have new tank syndrome then this is the stuff. I have a 5 gallon tank, so that number was waaaay too high for me. Beats the heck out of those expensive suit cleaners.

  • 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
  • Treatment Effectiveness
  • Quality
  • Value For Money
  • Affordability

API 52C Final Thoughts

"Mostly for betta's."

My water is crystal clear again, and it smells like a healthy fish tank again. I recieved it today at 3pm and applied it around 4pm. Boy, I thought I was having trouble with my filter. It only requires 3 drops per gallon you add to your tank. Crystal clear after changing water and adding this to my 2. You have to understand when to use this product, and what is is used for. This product is exactly what it says it is.

Overall Score
4.7


(8131 Points)

Peoples Choice - Other Highly Rated API Aquarium Water Treatments

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

User Ratings: 87 1

API 85C First Impressions

"Give it a shot."

It's water change day so I did this step first then started cleaning the tank. The aquasafe works instantly upon mixing with tap water. I have used this consistently since cycling my small sized fresh-water tank. The aquasafe works instantly upon mixing with tap water. I read the instructions, measured out the product, and added it to the tank. I have been battling cloudy water in our small aquarium for two months. The aquasafe works instantly upon mixing with tap water.

  • 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
  • Treatment Effectiveness
  • Quality
  • Value For Money
  • Affordability

API 85C Final Thoughts

"I was very surprised."

From their own colon or a hole in the ground. If you're serious about fish keeping, always quarantine and always use Stress Coat! 4-5 squirts in a sink of water, soak my suit 10 min, wring out and hang to dry. The top is a measuring tool as well which I was not expecting. I read the reviews, and decided to give this a try. It has been 4 days and our beta is loving the clearer water. No exaggeration-- literally cleared overnight.

Overall Score
4.8


(7864 Points)

3. API Aquarium Algae Remover

User Ratings: 68 8

API 87E First Impressions

"I have six tanks."

I've used every product on the market and this is the most AMAZING MUST HAVE PRODUCT! Fish would die occassionally every few weeks or so. Use a water conditioner that does not remove ammonia. I read the reviews, and decided to give this a try. I'm amazed, I'm really amazed that this product worked so well. I've had my fishy for 5 years now and I would say it's ALL because of Fluval. I have been using API on his suits for 3 weeks now and so far so good.

  • 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
  • Treatment Effectiveness
  • Quality
  • Value For Money
  • Affordability

API 87E Final Thoughts

"I love this stuff!"

My filter including polishing element could not clear it up. I know you are going to want to add more chemicals, etc. I like API products and this is no different. I do not use this as a product to treat my tap water. We use it when we clean& change out water. Fish would die occassionally every few weeks or so. I even poured in extra to help with the healing.

Overall Score
4.3


(4037 Points)

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

User Ratings: 83 2

API 89E First Impressions

"Then go for it."

Crystal clear after changing water and adding this to my 2. I know you are going to worry about your fish DON'T they are fine. I've used API water conditioner before and it works well. API Stress Coat is a phenomenal product. The aquasafe works instantly upon mixing with tap water. I have had aquariums for 40 years and have always used their product Cycle. I like API products and this is no different.

  • 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
  • Treatment Effectiveness
  • Quality
  • Value For Money
  • Affordability

API 89E Final Thoughts

"I have guppies."

I tried it without the water change and really didn't make a difference. It is much safer to simply to add 3 drops per gallon. The chloramines contain a small amount of ammonia. I'm sold on this, I've tried SO MANY and wow. Use a heater and crank it to 82 degrees again without fish in the tank. Use a heater and crank it to 82 degrees again without fish in the tank. Sure enough they are back to their healthy coloration and didn't end up dying on me.

Overall Score
4.7


(3936 Points)

Honorable Mentions - More Top Selling API Aquarium Water Treatments

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

User Ratings: 85 2

API 56E First Impressions

"Worked just as well."

The equation is already done for you if you buy Dr. Do not gravel vac or disturb the substrate. Fish are aerobic organisms that are susceptible to ROS. I have a 5 gallon tank, so that number was waaaay too high for me. I've using this for my betta for several years with every water change. This only applies to the 1st application. Initially this was used as a sample packet came with our aquarium.

  • 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
  • Treatment Effectiveness
  • Quality
  • Value For Money
  • Affordability

API 56E Final Thoughts

"No odor or discoloration."

My fish didn't appear negatively effected by it either. However, be aware that the dosage starts at 20 gallons. The aquasafe works instantly upon mixing with tap water. Use a heater and crank it to 82 degrees again without fish in the tank. The equation is already done for you if you buy Dr. I've used every product on the market and this is the most AMAZING MUST HAVE PRODUCT! I'll continue to use this product, especially after a good tank cleaning.

Overall Score
4.8


(3764 Points)

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

User Ratings: 76 2

API 440D First Impressions

"Thank you!"

My water was cloudy with a very fine misty haze. This allows the conditioner time for its anti-heavy metal ingredients to work fully. I have two goldfish and a Corydoras catfish. I did water changes, but it didn't help. He started making bubble nests again which ne never did when it was super cloudy. However, be aware that the dosage starts at 20 gallons. I like that it's a large bottle with multiple uses, so that's nice.

  • 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
  • Contains one (1) API TURTLE WATER CONDITIONER Water Conditioner 8-Ounce Bottle
  • Made in the US
  • Package weight : 0.65 pounds
  • Package dimensions : 1.75 inches (H) x 1.75 inches (L) x 7.5 inches (W)
  • Manufacture: Mars Fishcare Inc.
  • Product Dimensions: 2 x 2 x 7.5 inches; 10.4 Ounces
  • Editor's Impressions Of The API 440D
  • Treatment Effectiveness
  • Quality
  • Value For Money
  • Affordability

API 440D Final Thoughts

"In my other tank a 5."

The chloramines contain a small amount of ammonia. The reviews on people fish dying really spooked me. If you're treating injured fins or introducing new fish, this is for you. No observable signs of stress in the fish. I decant this to a small 5 oz squeeze bottle and leave the rest in the fridge. I'm sold on this, I've tried SO MANY and wow. I have a great pump and uv light but still had cloudy-ish water.

Overall Score
4.6


(3696 Points)

7. API ACCU-CLEAR Freshwater Aquarium Water Clarifier

User Ratings: 78 4

API 111C First Impressions

"Very little was eaten."

It is just as good when compared to other brands of conditioner. I'm hoping this one works out if not I'm sticking to the one I used before. Its 9pm and the old cloudy water is now crystal clear! Easy to dispense the product without mess and easy to use per instructions. The bottle will last me years as it is huge! If either or both ammonia and Nitrite are above 1ppm do not add ammonia. I finally gave in and purchased this product.

  • API ACCU-CLEAR Freshwater Aquarium Water Clarifier
  • Contains one (1) API ACCU-CLEAR Freshwater Aquarium Water Clarifier 8-Ounce Bottle
  • Clears cloudy aquarium water
  • Clumps floating particles into large clusters that can be easily removed by an aquarium filter
  • Works fast and maximizes filter efficiency
  • Use weekly and when cloudy water is observed in freshwater aquariums only
  • Manufacture: Aquarium Pharmaceuticals
  • Product Dimensions: 2 x 2 x 7.5 inches; 10 Ounces
  • Editor's Impressions Of The API 111C
  • Treatment Effectiveness
  • Quality
  • Value For Money
  • Affordability

API 111C Final Thoughts

"This pristine is amazing!"

I have two 36 gallon tanks right now. We use it when we clean& change out water. I use in a freshwater aquarium and works well. I hope it makes the swimsuit last longer. This worked really well for my tank. I could see it working immediately which was pretty wild. But the septic tank bacteria did nothing.

Overall Score
4.6


(3566 Points)

8. API PIMAFIX Antifungal Freshwater and Saltwater Fish Remedy

User Ratings: 75 4

API 10J First Impressions

"Wow my tank is so clear."

In my opinion there's nothing better. You need a source of ammonia to feed the bacteria which Dr. Easy to dispense the product without mess and easy to use per instructions. Fish possess an antioxidant defense system to reduce the negative effects of ROS. Now our fish have grown and we've added live plants. It didn't kill the fish or cause any problems with the water so I stuck with it. No exaggeration-- literally cleared overnight.

  • API PIMAFIX Antifungal Freshwater and Saltwater Fish Remedy
  • Contains one (1) API PIMAFIX Antifungal Freshwater and Saltwater Fish Remedy 16-Ounce Bottle
  • Rapidly and safely treats fungal infections on body and fins of fish
  • Contains all-natural extract from West Indian Bay Trees to help with fungus and cottony growth
  • Helps heal internal and external bacterial infections in freshwater, saltwater and reef aquariums
  • Use daily for a week when treating infections
  • Manufacture: Aquarium Pharmaceuticals
  • Product Dimensions: 2.76 x 2.76 x 8.66 inches; 8 Ounces
  • Editor's Impressions Of The API 10J
  • Treatment Effectiveness
  • Quality
  • Value For Money
  • Affordability

API 10J Final Thoughts

"Really good product!"

This will give you how many drops is required per gallon. Fish possess an antioxidant defense system to reduce the negative effects of ROS. API Stress Coat is a phenomenal product. I'm sold on this, I've tried SO MANY and wow. I read another review for this product saying they were using API for this purpose. But the septic tank bacteria did nothing. It didn't kill the fish or cause any problems with the water so I stuck with it.

Overall Score
4.5


(2016 Points)

9. API AMMO-LOCK Ammonia detoxifier, Detoxifies ammonia toxic to fish in aquarium water and tap water, ...

User Ratings: 75 3

API 45E First Impressions

"Shake well before use."

Way to go Fluval keep up the good WORK! If you have a freshwater fish tank, I highly recommend this product. Ever since I made this purchase, my fish are not dying at all. Way to go Fluval keep up the good WORK! My tap water is very heavy and this water conditioner does it's magic. The chloramines contain a small amount of ammonia. I know you are going to worry about your fish DON'T they are fine.

  • API AMMO-LOCK Ammonia detoxifier, Detoxifies ammonia toxic to fish in aquarium water and tap water, Use when ammonia is detected
  • Contains one (1) API AMMO-LOCK Freshwater and Saltwater Aquarium Ammonia Detoxifier 16-Ounce Bottle
  • Detoxifies ammonia in aquarium water and tap water
  • Works instantly to make aquarium water safe for fish
  • Eliminates fish stress caused by ammonia in freshwater and saltwater aquariums
  • Dose freshwater and saltwater every two days until ammonia is not detected
  • Manufacture: Aquarium Pharmaceuticals
  • Product Dimensions: 6 x 6 x 8 inches; 1 Pounds
  • Editor's Impressions Of The API 45E
  • Treatment Effectiveness
  • Quality
  • Value For Money
  • Affordability

API 45E Final Thoughts

"Of course."

Fish possess an antioxidant defense system to reduce the negative effects of ROS. I know you are going to want to add more chemicals, etc. DON'T just wait everything will be fine. I even poured in extra to help with the healing. I was sort of nervous buy this product and trying it out. I do not use this as a product to treat my tap water. This is the 5th since I put in the product and my tank is crystal clear.

Overall Score
4.6


(1755 Points)

10. API PROPER pH Freshwater Aquarium Water pH Stabilizer

User Ratings: 71 5

API 36C First Impressions

"Very little was eaten."

Beats the heck out of those expensive suit cleaners. My water is crystal clear again, and it smells like a healthy fish tank again. Fish would die occassionally every few weeks or so. It is just as good when compared to other brands of conditioner. I did water changes, but it didn't help. Now our fish have grown and we've added live plants. This is only temporary till I get a spare dropper.

  • API PROPER pH Freshwater Aquarium Water pH Stabilizer
  • Contains one (1) API PROPER pH 7.0 Freshwater Aquarium Water pH Stabilizer 8.8-Ounce Container
  • Sets and stabilizes water pH to neutral to help keep fish healthy and colorful
  • Removes toxic compounds from tap water to make it safe for fish
  • Use exclusively in freshwater aquariums that do not contain live plants
  • Use when setting up a new aquarium, adjusting pH in an established aquarium or changing water
  • Manufacture: Aquarium Pharmaceuticals
  • Product Dimensions: 2.13 x 2.13 x 5 inches; 11.84 Ounces
  • Editor's Impressions Of The API 36C
  • Treatment Effectiveness
  • Quality
  • Value For Money
  • Affordability

API 36C Final Thoughts

"Wonderful product."

If you're treating injured fins or introducing new fish, this is for you. It's an All Natural Product with out of this world results. It gets rid of the chlorine in tap water. More doesn't hurt anything, but it's just wasted. This is definitely worth trying if you have cloudy water. If you're serious about fish keeping, always quarantine and always use Stress Coat! UV light works on it but not much else.

Overall Score
4.5


(1226 Points)

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