Editor's Choice - Our Favorite Unknown Aquarium Water Treatments

1. Potassium Permanganate Live Fish Disinfect Aquariums Clean Water Treatments 10 30 50 70 90 110 G.

User Ratings: 81 6

Unknown First Impressions

"I was getting 30-40 ppm."

It only requires 3 drops per gallon you add to your tank. I have two 36 gallon tanks right now. Use a heater and crank it to 82 degrees again without fish in the tank. This is the 5th since I put in the product and my tank is crystal clear. 1st day, I put product in tank with Fluval Biological Cleaner for Aquariums also. Fish would die occassionally every few weeks or so. I have been using API on his suits for 3 weeks now and so far so good.

  • Potassium Permanganate Live Fish Disinfect Aquariums Clean Water Treatments 10 30 50 70 90 110 G.
  • 99.8% Purity Potassium Permanganate.
  • contained in zipper bags as well.
  • you can choose 10 30 50 70 90 110 grams per orders.
  • Used to clean the aquarium, fish pond or tank fish.
  • Manufacture: Thailand
  • Editor's Impressions Of The Unknown
  • Treatment Effectiveness [star rating='4.1']
  • Quality [star rating='3.7']
  • Value For Money [star rating='3.8']
  • Affordability [star rating='3.5']

Unknown Final Thoughts

"I trust them 100%."

I intend to use this for every aquarium or pond I start. I have been using API on his suits for 3 weeks now and so far so good. The top is a measuring tool as well which I was not expecting. I like that it's a large bottle with multiple uses, so that's nice. This is only temporary till I get a spare dropper. I've had my fishy for 5 years now and I would say it's ALL because of Fluval. I recieved it today at 3pm and applied it around 4pm.

Overall Score
4.5

[star rating="4.5"]
(81 Points)

2. Seachem Laboratories INC METROPLEX (10 Grams)

User Ratings: 78 5

Seachem First Impressions

"Just measure and pour."

Now our fish have grown and we've added live plants. It took a couple of days to clear but it works. I'm sold on this, I've tried SO MANY and wow. I finally gave in and purchased this product. I tried it without the water change and really didn't make a difference. I even poured in extra to help with the healing. Way to go Fluval keep up the good WORK!

  • Seachem Laboratories INC METROPLEX (10 Grams)
  • 2 5-gram bottles MetroPlex water treatment
  • For use in both marine and freshwater aquariums
  • Gentle enough to not adversely affect the fish tank's filter bed
  • Use as part of a medicated food mix to safely treat fish without harming corals
  • MetroPlex is an effective treatment for protozoan and anaerobic bacterial diseases in fish
  • Manufacture: Seachem
  • Editor's Impressions Of The Seachem
  • Treatment Effectiveness [star rating='4.8']
  • Quality [star rating='4.4']
  • Value For Money [star rating='4.5']
  • Affordability [star rating='4.4']

Seachem Final Thoughts

"I recommend it."

This is my absolute favorite conditioner I have used for all my aquatic creatures. Sure enough they are back to their healthy coloration and didn't end up dying on me. I like API products and this is no different. Way to go Fluval keep up the good WORK! I finally gave in and purchased this product. Fish seem healthy and active during use. Initially this was used as a sample packet came with our aquarium.

Overall Score
4.5

[star rating="4.5"]
(340 Points)

3. Fritz Aquatics FritzZyme 7 Nitrifying Bacteria for Fresh Water Aquariums

User Ratings: 78 7

Fritz Aquatics 80223 First Impressions

"Look up Dr."

I'll continue to use this product, especially after a good tank cleaning. 4-5 squirts in a sink of water, soak my suit 10 min, wring out and hang to dry. I was sort of nervous buy this product and trying it out. Fish seem healthy and active during use. It took a couple of days to clear but it works. I have two goldfish and a Corydoras catfish. It didn't kill the fish or cause any problems with the water so I stuck with it.

  • Fritz Aquatics FritzZyme 7 Nitrifying Bacteria for Fresh Water Aquariums
  • The Original Live Nitrifying Bacteria for Fresh Water
  • Rapidly Eliminates Toxic Ammonia and Nitrite
  • Allows for Safe and Immediate Introduction of Livestock
  • Establishes and Maintains a Healthy Biofilter
  • A Safe, Natural Approach to Water Treatment
  • Manufacture: TopDawg Pet Supply
  • Product Dimensions: 0.02 x 0.02 x 0.02 inches; 0.3 Ounces
  • Editor's Impressions Of The Fritz Aquatics 80223
  • Treatment Effectiveness [star rating='3.9']
  • Quality [star rating='5']
  • Value For Money [star rating='3.9']
  • Affordability [star rating='4.5']

Fritz Aquatics 80223 Final Thoughts

"It will last a long time!"

I have a 5 gallon tank, so that number was waaaay too high for me. I was sort of nervous buy this product and trying it out. I had a parasite problem, and had to heal my fishes scales and fins. Very good product for an unbelievable price. This is my go to water conditioner and stressed fish treatment. I have a great pump and uv light but still had cloudy-ish water. It didn't kill the fish or cause any problems with the water so I stuck with it.

Overall Score
4.5

[star rating="4.5"]
(522 Points)

4. Brightwell Aquatics Blackwater – Water Conditioner with Humic Substances for All Planted & Blackwa...

User Ratings: 66 5

Brightwell Aquatics BWR500 First Impressions

"Of course."

This is my absolute favorite conditioner I have used for all my aquatic creatures. By the following morning, the water was clear of algae. One planted that has algae problem so bad. If you have new tank syndrome then this is the stuff. During cycling you will be using often. No exaggeration-- literally cleared overnight. Just an idea incase someone doesn't have a spare dropper.

  • Brightwell Aquatics Blackwater – Water Conditioner with Humic Substances for All Planted & Blackwater Biotope Aquariums
  • Establishes similar water conditions to those found in blackwater rivers that is important to many aquarium fish and plants
  • Help simulate the onset of the rainy season for encouragement of fish spawning
  • Enhances the effectiveness of plant nutrient solutions in aquariums
  • Increases the availability of important nutrients such as iron calcium magnesium molybdenum copper manganese zinc cobalt and nickel
  • Made in the USA
  • Manufacture: TopDawg Pet Supply
  • Product Dimensions: 1 x 1 x 1 inches; 1 Pounds
  • Editor's Impressions Of The Brightwell Aquatics BWR500
  • Treatment Effectiveness [star rating='4.1']
  • Quality [star rating='3.7']
  • Value For Money [star rating='3.8']
  • Affordability [star rating='5']

Brightwell Aquatics BWR500 Final Thoughts

"5 stars all the way!"

I even poured in extra to help with the healing. I like that it's a large bottle with multiple uses, so that's nice. I have two 36 gallon tanks right now. I have had aquariums for 40 years and have always used their product Cycle. I'm hoping this one works out if not I'm sticking to the one I used before. The aquasafe water conditioner is a fantastic de-chlorinator. I hope I made the right decision, Betty is our family pet and is really loved!

Overall Score
4.3

[star rating="4.3"]
(76 Points)

5. API AQUARIUM START UP PACK Water Conditioner 1.25-Ounce Bottle 2-Pack

User Ratings: 76 2

API 84E First Impressions

"I LOVE this product."

Tim's cultures were obviously very alive and active. I have been battling cloudy water in our small aquarium for two months. I decant this to a small 5 oz squeeze bottle and leave the rest in the fridge. I decant this to a small 5 oz squeeze bottle and leave the rest in the fridge. 1st day, I put product in tank with Fluval Biological Cleaner for Aquariums also. Fish seem healthy and active during use. I swim 5x week and usually my suits last about 2 months.

  • API AQUARIUM START UP PACK Water Conditioner 1.25-Ounce Bottle 2-Pack
  • Contains one (1) API AQUARIUM START UP PACK Water Conditioner 1.25-Ounce Bottle 2-Pack
  • Makes tap water safe for fish and reduces fish stress.
  • Starts aquarium cycle and allows instant addition of fish.
  • Comes with two API products, STRESS COAT and QUICK START, for a healthy start-up aquarium.
  • Use when starting a new aquarium, changing water, or adding fish. Add STRESS COAT first and then QUICK START.
  • Manufacture: Aquarium Pharmaceuticals
  • Product Dimensions: 4.88 x 1.19 x 6.38 inches; 3.2 Ounces
  • Editor's Impressions Of The API 84E
  • Treatment Effectiveness [star rating='5']
  • Quality [star rating='4.4']
  • Value For Money [star rating='5']
  • Affordability [star rating='5']

API 84E Final Thoughts

"Good luck, Dr."

My filter including polishing element could not clear it up. The bottle will last me years as it is huge! She seems ok with it she is behaving like herself. I did water changes, but it didn't help. However, be aware that the dosage starts at 20 gallons. The difference is that he was going twice his normal speed. I decant this to a small 5 oz squeeze bottle and leave the rest in the fridge.

Overall Score
4.6

[star rating="4.6"]
(644 Points)

6. Seachem 2 Bottles of Stability, 16.9 Fluid Ounces, for Marine and Freshwater Aquariums

User Ratings: 91 2

Seachem First Impressions

"Great deal!"

Dealing with biological cloudiness in my tank for some time. This will give you how many drops is required per gallon. It has been 4 days and our beta is loving the clearer water. From their own colon or a hole in the ground. If either or both ammonia and Nitrite are above 1ppm do not add ammonia. When they disinfect a repair site, they are normally only using chlorine. If you have new tank syndrome then this is the stuff.

  • Seachem 2 Bottles of Stability, 16.9 Fluid Ounces, for Marine and Freshwater Aquariums
  • Superior tank starter
  • Can't overdose
  • Fresh and saltwater use
  • Manufacture: Seachem
  • Product Dimensions: 2.36 x 4.72 x 8.66 inches; 2.4 Pounds
  • Editor's Impressions Of The Seachem
  • Treatment Effectiveness [star rating='4.6']
  • Quality [star rating='4.5']
  • Value For Money [star rating='5']
  • Affordability [star rating='4.6']

Seachem Final Thoughts

"This stuff really works."

More doesn't hurt anything, but it's just wasted. Dunkin, my Betta doesn't seem to stress out over my adding this. I'm sold on this, I've tried SO MANY and wow. I used to use AmQuel years ago and then spent years out of the aquarium hobby. The aquasafe works instantly upon mixing with tap water. I finally gave in and purchased this product. I know you are going to want to add more chemicals, etc.

Overall Score
4.8

[star rating="4.8"]
(169 Points)

7. Instant Ocean Marine Conditioner 250 mL, Makes Tap Water Safe for Aquariums

User Ratings: 82

Instant Ocean IN05303 First Impressions

"I LOVE PRISTINE!"

Use a heater and crank it to 82 degrees again without fish in the tank. Fish are aerobic organisms that are susceptible to ROS. I know you are going to worry about your fish DON'T they are fine. I'm sold on this, I've tried SO MANY and wow. The top is a measuring tool as well which I was not expecting. I've used API water conditioner before and it works well. This is only temporary till I get a spare dropper.

  • Instant Ocean Marine Conditioner 250 mL, Makes Tap Water Safe for Aquariums
  • CONDITIONS WATER: Makes tap water safe for aquarium use – protects fish and promotes healthy water conditions.
  • DETOXIFIES INSTANTLY: Eliminates heavy metals, chlorine and chloramine.
  • FOR TANK MAINTENANCE: Use every time you add water to your aquarium.
  • MEASURE: Use 5 mL for every 10 gallons of aquarium water.
  • Manufacture: Instant Ocean
  • Item Weight: 10.9 ounces
  • Product Dimensions: 1.63 x 3 x 7 inches
  • Editor's Impressions Of The Instant Ocean IN05303
  • Treatment Effectiveness [star rating='3.8']
  • Quality [star rating='4.4']
  • Value For Money [star rating='5']
  • Affordability [star rating='5']

Instant Ocean IN05303 Final Thoughts

"And it did."

I have had aquariums for 40 years and have always used their product Cycle. I tried it without the water change and really didn't make a difference. Don't know if that made a difference but it didn't hurt. My tap water is very heavy and this water conditioner does it's magic. I do not use this as a product to treat my tap water. Do not gravel vac or disturb the substrate. This is my absolute favorite conditioner I have used for all my aquatic creatures.

Overall Score
4.7

[star rating="4.7"]
(263 Points)

8. Hikari Usa AHK73316 Salt water Ich-X for Aquarium, 16-Ounce

User Ratings: 59 14

Hikari Usa Inc. 42178 First Impressions

"Break down organics."

Crystal clear after changing water and adding this to my 2. Good Product, Good Price Gets five stars! I'll continue to use this product, especially after a good tank cleaning. I love it when a product does what its supposed to. I do have the aforementioned uv light working on it. UV light works on it but not much else. It only requires 3 drops per gallon you add to your tank.

  • Hikari Usa AHK73316 Salt water Ich-X for Aquarium, 16-Ounce
  • Hikari salt water ich x 16oz
  • Your pet will love it
  • Salt water ich x ich treatment with more, treats ich 1oz treat 60 gallons for salt water
  • Manufacture: TopDawg Pet Supply
  • Product Dimensions: 0.02 x 0.02 x 0.02 inches; 0.32 Ounces
  • Editor's Impressions Of The Hikari Usa Inc. 42178
  • Treatment Effectiveness [star rating='4.3']
  • Quality [star rating='4.2']
  • Value For Money [star rating='3.5']
  • Affordability [star rating='3.1']

Hikari Usa Inc. 42178 Final Thoughts

"I highly recommend it."

I have been battling cloudy water in our small aquarium for two months. If you have new tank syndrome then this is the stuff. Crystal clear after changing water and adding this to my 2. If you have a freshwater fish tank, I highly recommend this product. I know you are going to worry about your fish DON'T they are fine. I have a Fluval tank and only use their chemicals. UV light works on it but not much else.

Overall Score
3.9

[star rating="3.9"]
(44 Points)

9. Fluval Clarify Bio for Aquarium Water Treatment

User Ratings: 68 5

Fluval First Impressions

"Then go for it."

No exaggeration-- literally cleared overnight. During cycling you will be using often. Fish possess an antioxidant defense system to reduce the negative effects of ROS. In the morning I awoke with my fish at the bottom barely able to move. This is only temporary till I get a spare dropper. However if you want a stress coat, this is perfect. If you're serious about fish keeping, always quarantine and always use Stress Coat!

  • Fluval Clarify Bio for Aquarium Water Treatment
  • 2-Count (Two 4 oz Bottles)
  • Bio Clear is recommended for clarifying cloudy water caused by new tank syndrome, excess food, organic waste and decaying plant material
  • Safe for all aquarium inhabitants
  • For freshwater use only
  • Made in Canada
  • Manufacture: Fluval
  • Editor's Impressions Of The Fluval
  • Treatment Effectiveness [star rating='3.5']
  • Quality [star rating='4.2']
  • Value For Money [star rating='5']
  • Affordability [star rating='4.7']

Fluval Final Thoughts

"They eat and poop a lot."

Dealing with biological cloudiness in my tank for some time. I like that it's a large bottle with multiple uses, so that's nice. It is much safer to simply to add 3 drops per gallon. I've used it for years with great results. 2nd day kinda noticed a slight change in water. I didn't purchase this for an aquarium. She seems ok with it she is behaving like herself.

Overall Score
4.4

[star rating="4.4"]
(377 Points)

10. Hikari Usa AHK72236 Ultimate Cloram-X Water Conditioner for Aquarium, 16-Ounce

User Ratings: 87 4

Hikari Usa Inc. 42169 First Impressions

"Great deal!"

Good Product, Good Price Gets five stars! You need to buy an eye dropper for this. In my opinion there's nothing better. Fish seem healthy and active during use. I use mine for my beta fish in a 2 gallon tank and need less than a half a cap full. The difference is that he was going twice his normal speed. This is only temporary till I get a spare dropper.

  • Hikari Usa AHK72236 Ultimate Cloram-X Water Conditioner for Aquarium, 16-Ounce
  • Hikari ultimate chloram-x 16oz
  • Ultimate is the world's first full-function water conditioner
  • Everything you need in one bottle to maintain a superior environment for your aquatic pets
  • Manufacture: TopDawg Pet Supply
  • Product Dimensions: 0.02 x 0.02 x 0.02 inches; 0.32 Ounces
  • Editor's Impressions Of The Hikari Usa Inc. 42169
  • Treatment Effectiveness [star rating='3.9']
  • Quality [star rating='5']
  • Value For Money [star rating='5']
  • Affordability [star rating='5']

Hikari Usa Inc. 42169 Final Thoughts

"Mostly for betta's."

From their own colon or a hole in the ground. If you have a freshwater fish tank, I highly recommend this product. Use a heater and crank it to 82 degrees again without fish in the tank. I read the reviews, and decided to give this a try. I have a 5 gallon tank, so that number was waaaay too high for me. Just an idea incase someone doesn't have a spare dropper. This worked really well for my tank.

Overall Score
4.7

[star rating="4.7"]
(120 Points)

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