Editor's Choice - Our Favorite Penn-Plax Aquarium Water Treatments

1. Penn Plax Pro-Carb Activated Carbon Crystals for Aquarium

User Ratings: 66 5

Penn-Plax PBC3M First Impressions

"I was very surprised."

If you're treating injured fins or introducing new fish, this is for you. When they disinfect a repair site, they are normally only using chlorine. I've using this for my betta for several years with every water change. However if you want a stress coat, this is perfect. I hope I made the right decision, Betty is our family pet and is really loved! I was sort of nervous buy this product and trying it out. Don't know if that made a difference but it didn't hurt.

  • Penn Plax Pro-Carb Activated Carbon Crystals for Aquarium
  • Remove toxins, harmful chemicals, and odors from your aquarium’s water with our specially formulated Pro-Carb filter media.
  • Pro-Carb contains laboratory quality, fast acting activated carbon crystals to remove harmful chemicals, odors, and discolorations from aquarium water.
  • Maximizes filter efficiency by helping to remove harmful toxins and ammonia from the aquarium water. Penn-Plax Pro Carb formula will keep your water clear for 4 to 6 weeks.
  • Pro Carb  leaves your water looking crystal clear and is safe for use in both fresh and saltwater fish tanks.
  • Included Components: Pro-Carb Activated Carbon Crystals
  • Manufacture: Penn Plax, INC.
  • Product Dimensions: 13.25 x 5.2 x 3.25 inches; 4.2 Pounds
  • Editor's Impressions Of The Penn-Plax PBC3M
  • Treatment Effectiveness [star rating='4.1']
  • Quality [star rating='3.8']
  • Value For Money [star rating='4']
  • Affordability [star rating='3.4']

Penn-Plax PBC3M Final Thoughts

"It will last a long time!"

Fish seem healthy and active during use. My tap water is very heavy and this water conditioner does it's magic. However if you want a stress coat, this is perfect. Sure enough they are back to their healthy coloration and didn't end up dying on me. I use in a freshwater aquarium and works well. Crystal clear after changing water and adding this to my 2. By the following morning, the water was clear of algae.

Overall Score
4.3

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

2. Zilla Reptile Terrarium Aquatic Water Conditioner, 8-Ounce

User Ratings: 76 4

Zilla 100111526 First Impressions

"Recommend."

It didn't kill the fish or cause any problems with the water so I stuck with it. I have been using API on his suits for 3 weeks now and so far so good. The aquasafe works instantly upon mixing with tap water. I have a great pump and uv light but still had cloudy-ish water. I recieved it today at 3pm and applied it around 4pm. This worked really well for my tank. I have been using API on his suits for 3 weeks now and so far so good.

  • Zilla Reptile Terrarium Aquatic Water Conditioner, 8-Ounce
  • Makes tap water safe for aquatic animals such as turtles, frogs and newts
  • Neutralizes chlorine, chloramines and heavy metals
  • Bottle cap doubles as a measuring guide which assures accurate treatment
  • Quick and easy to use
  • Ideal for: aquatic and semi-aquatic reptiles and amphibians
  • Manufacture: Central Garden & Pet
  • Product Dimensions: 2.3 x 6.8 x 2 inches; 10.4 Ounces
  • Editor's Impressions Of The Zilla 100111526
  • Treatment Effectiveness [star rating='5']
  • Quality [star rating='5']
  • Value For Money [star rating='4.3']
  • Affordability [star rating='4.6']

Zilla 100111526 Final Thoughts

"I was very surprised."

Boy, I thought I was having trouble with my filter. This came just in time for my water change day! My filter including polishing element could not clear it up. I finally gave in and purchased this product. Dunkin, my Betta doesn't seem to stress out over my adding this. 1st day, I put product in tank with Fluval Biological Cleaner for Aquariums also. This product is exactly what it says it is.

Overall Score
4.6

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

3. Instant Ocean BIO-Spira Water Treatment for Aquariums

User Ratings: 80 2

Instant Ocean 77964 First Impressions

"But that wasn't the case!"

I know you are going to worry about your fish DON'T they are fine. This worked really well for my tank. This came just in time for my water change day! It gets rid of the chlorine in tap water. I do not use this as a product to treat my tap water. I read another review for this product saying they were using API for this purpose. My filter including polishing element could not clear it up.

  • Instant Ocean BIO-Spira Water Treatment for Aquariums
  • STARTS NEW aquariumS INSTANTLY Instant Ocean BIO-Spira accelerates the establishment of the bio-filter to prevent new tank syndrome
  • FOR SALTWATER TANKS Also use after a water change when adding new fish or after medicating
  • SHELF STABLE Does not require refrigeration
  • TREATMENT One bottle treats up to 75 gallons of water in marine aquariums
  • Age Range Description: All Life Stages
  • Included Components: 1 X Bio-Spira 250 Ml
  • Live nitrifying bacteria start working immediately to reduce dangerous ammonia and nitrite
  • Prevents new tank syndrome
  • Manufacture: Instant Ocean
  • Product Dimensions: 1.63 x 3 x 7 inches; 10.14 Ounces
  • Editor's Impressions Of The Instant Ocean 77964
  • Treatment Effectiveness [star rating='4.4']
  • Quality [star rating='5']
  • Value For Money [star rating='5']
  • Affordability [star rating='5']

Instant Ocean 77964 Final Thoughts

"Very little was eaten."

By the following morning, the water was clear of algae. I'm amazed, I'm really amazed that this product worked so well. I used to use AmQuel years ago and then spent years out of the aquarium hobby. If either or both ammonia and Nitrite are above 1ppm do not add ammonia. The aquasafe water conditioner is a fantastic de-chlorinator. In the last two months I have seen this product work its gold. The afternoon I received this product I added half a dose to each aquarium.

Overall Score
4.6

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

4. Fritz Aquatics FritzZyme Monster 460 Concentrated Biological Conditioner for Salt Water Aquariums

User Ratings: 70 13

Fritz Aquatics 76128 First Impressions

"It was a viscous cycle."

API Stress Coat is a phenomenal product. The live plants even looked like I just bought them. Do not gravel vac or disturb the substrate. I finally gave in and purchased this product. I could see it working immediately which was pretty wild. My water was cloudy with a very fine misty haze. However if you want a stress coat, this is perfect.

  • Fritz Aquatics FritzZyme Monster 460 Concentrated Biological Conditioner for Salt Water Aquariums
  • Concentrated Biological Aquarium Cleaner for Salt Water
  • Promotes a Clean, Clear and Healthy Aquarium
  • Eliminates Foul Odors and Improves Water Clarity
  • Bacteria Rapidly Digest Waste
  • Reduces and Simplifies Maintenance
  • Manufacture: Fritz Aquatics
  • Product Dimensions: 11.89 x 6 x 6 inches; 8.69 Pounds
  • Editor's Impressions Of The Fritz Aquatics 76128
  • Treatment Effectiveness [star rating='4.4']
  • Quality [star rating='4']
  • Value For Money [star rating='3.6']
  • Affordability [star rating='3.3']

Fritz Aquatics 76128 Final Thoughts

"I LOVE PRISTINE!"

This only applies to the 1st application. I've always had a love for fish and had a few tanks when I was younger. Do not clean the filters, do not change the filters. I have a great pump and uv light but still had cloudy-ish water. Pictures included to see the difference. He started making bubble nests again which ne never did when it was super cloudy. The equation is already done for you if you buy Dr.

Overall Score
4.1

[star rating="4.1"]
(12 Points)

5. Max Water 6 Stage Reef Aquarium Reverse Osmosis System/Reverse Osmosis System/RO Water Filtration Sy...

User Ratings: 86

Max Water First Impressions

"So easy to use."

We use it when we clean& change out water. I'm hoping this one works out if not I'm sticking to the one I used before. The equation is already done for you if you buy Dr. My water is crystal clear like the first day i filled it and i could be happier. In my opinion there's nothing better. My tap water is very heavy and this water conditioner does it's magic. I've used it for years with great results.

  • Max Water 6 Stage Reef Aquarium Reverse Osmosis System/Reverse Osmosis System/RO Water Filtration System/RO Water Purifier 75 GPD RODI System + HM Inline TDS Meter
  • Waste Ratio 1 RO : 2 Waste , Pressure Gauge, No Power Required
  • Removes 92% - 98% of contamination from the incoming water
  • Operational water pressure 45 to 75 PSI City water.
  • For well water supply; please add a booster pump even if your pressure set between 50 to 70 PSI
  • 1-year Manufacturer's warrant, Manufactured in Canada
  • Protects the RO Membrane from dogging with three stages: Polypropylene Sediment, Granular Activated Carbon (GAC), and Carbon Block (CTO) filters.
  • The semipermeable RO Membrane is the main filter of the system and removes up to 99% of contaminants from the pre-filtered water.
  • Manufacture: Max Water
  • Part Number: BEE7667B-8112-4EFE-8795-05047080C375
  • Item Weight: 33 pounds
  • Color: Clear
  • Editor's Impressions Of The Max Water
  • Treatment Effectiveness [star rating='4']
  • Quality [star rating='5']
  • Value For Money [star rating='4']
  • Affordability [star rating='3.9']

Max Water Final Thoughts

"Wow my tank is so clear."

The chloramines contain a small amount of ammonia. Do not gravel vac or disturb the substrate. I hope it makes the swimsuit last longer. This is definitely worth trying if you have cloudy water. I read the reviews, and decided to give this a try. This product is exactly what it says it is. From their own colon or a hole in the ground.

Overall Score
4.9

[star rating="4.9"]
(4 Points)

6. API Proper PH 8.2 Aquarium Water pH adjuster, 160 Gram Jar

User Ratings: 75 3

API First Impressions

"Good, or bad."

I have used this consistently since cycling my small sized fresh-water tank. In the last two months I have seen this product work its gold. Good Product, Good Price Gets five stars! I love it when a product does what its supposed to. If you have a freshwater fish tank, I highly recommend this product. I'm amazed, I'm really amazed that this product worked so well. This product is exactly what it says it is.

  • API Proper PH 8.2 Aquarium Water pH adjuster, 160 Gram Jar
  • Manufacture: API
  • Editor's Impressions Of The API
  • Treatment Effectiveness [star rating='4.4']
  • Quality [star rating='3.6']
  • Value For Money [star rating='4.6']
  • Affordability [star rating='4.1']

API Final Thoughts

"Wow my tank is so clear."

She seems ok with it she is behaving like herself. My tap water is very heavy and this water conditioner does it's magic. The difference is that he was going twice his normal speed. I'm sold on this, I've tried SO MANY and wow. I like API products and this is no different. Crystal clear after changing water and adding this to my 2. The equation is already done for you if you buy Dr.

Overall Score
4.5

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

7. API Pond Stress Coat Water Conditioner, Makes tap Water Safe, Replaces Protective Coat Damaged by ha...

User Ratings: 85

API 140G First Impressions

"I highly recommend!"

It has been 4 days and our beta is loving the clearer water. I've used it for years with great results. This is only temporary till I get a spare dropper. I know you are going to want to add more chemicals, etc. The difference is that he was going twice his normal speed. If you're treating injured fins or introducing new fish, this is for you. I have two goldfish and a Corydoras catfish.

  • API Pond Stress Coat Water Conditioner, Makes tap Water Safe, Replaces Protective Coat Damaged by handling & Fish Fighting, Use When Adding or Changing Water, When Adding Fish, When Fish are Injured
  • Contains one (1) API POND STRESS COAT Pond Water Conditioner 32-Ounce Bottle
  • Protects fish and removes harmful-to-fish chemicals from tap water to make water safe
  • Contains Aloe Vera to replace fish's protective coat damaged by handling, shipping or fighting
  • Safe for freshwater ponds, fish and pond plants, as well as surrounding wildlife and pets
  • Use when adding or changing water, when adding new fish, and when fish are damaged by injury or disease
  • Manufacture: Aquarium Pharmaceuticals, API, MARS Fishcare
  • Product Dimensions: 9.4 x 4.3 x 2.9 inches; 2.5 Pounds
  • Editor's Impressions Of The API 140G
  • Treatment Effectiveness [star rating='5']
  • Quality [star rating='4.5']
  • Value For Money [star rating='4.3']
  • Affordability [star rating='4.7']

API 140G Final Thoughts

"Of course."

Fish would die occassionally every few weeks or so. I even poured in extra to help with the healing. I'll continue to use this product, especially after a good tank cleaning. However if you want a stress coat, this is perfect. I did water changes, but it didn't help. Pictures included to see the difference. I know you are going to worry about your fish DON'T they are fine.

Overall Score
4.8

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

8. Microbe Lift 1-Quart Pond Microbe-Lift TheraP THERAPQ,Black

User Ratings: 76

Microbe Lift THERAPQ First Impressions

"Highly recommend!"

I read the reviews, and decided to give this a try. We use it when we clean& change out water. DON'T just wait everything will be fine. But the septic tank bacteria did nothing. Thanks to the Amazon reviewer who mentioned this! Tim's cultures were obviously very alive and active. Fish are aerobic organisms that are susceptible to ROS.

  • Microbe Lift 1-Quart Pond Microbe-Lift TheraP THERAPQ,Black
  • Provides a natural pond eco-system
  • Improved water quality for use with all ornamental, coldwater, temperate, cyprinids, native and wild species
  • Reduces environmental stress
  • Beneficial when overpopulation exists
  • Compatible with all pond fish, wildlife and other Microbe-Lift products
  • Manufacture: Ecological Labs
  • Item Weight: 2.25 pounds
  • Product Dimensions: 7.6 x 4.6 x 4.2 inches
  • Editor's Impressions Of The Microbe Lift THERAPQ
  • Treatment Effectiveness [star rating='4.8']
  • Quality [star rating='4.5']
  • Value For Money [star rating='4.6']
  • Affordability [star rating='3.8']

Microbe Lift THERAPQ Final Thoughts

"Until this mirical!"

You need to buy an eye dropper for this. DON'T just wait everything will be fine. I've had my fishy for 5 years now and I would say it's ALL because of Fluval. This worked really well for my tank. I have a 5 gallon tank, so that number was waaaay too high for me. 1st day, I put product in tank with Fluval Biological Cleaner for Aquariums also. I have a 5 gallon tank, so that number was waaaay too high for me.

Overall Score
4.8

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

9. Ph Up Bottle Water Conditioner [Set of 2] Size: 16 oz.

User Ratings: 87

Mars Fishcare North America First Impressions

"If you are not using Dr."

From their own colon or a hole in the ground. Just an idea incase someone doesn't have a spare dropper. But the septic tank bacteria did nothing. My water is crystal clear again, and it smells like a healthy fish tank again. Dealing with biological cloudiness in my tank for some time. I tried it without the water change and really didn't make a difference. I have a Fluval tank and only use their chemicals.

  • Ph Up Bottle Water Conditioner [Set of 2] Size: 16 oz.
  • Contains 2 API pH UP Freshwater Aquarium Water pH Raising Solution 16-Ounce Bottle
  • Raises freshwater aquarium water pH with a phosphate-free formula
  • Does not promote algae growth with pH adjustments and is safe for plants and fish
  • Slowly neutralizes acidic substances that cause low water pH
  • Pack of 2
  • Manufacture: API
  • Product Dimensions: 3.25 x 2.5 x 8.75 inches; 2.8 Pounds
  • Editor's Impressions Of The Mars Fishcare North America
  • Treatment Effectiveness [star rating='4.3']
  • Quality [star rating='5']
  • Value For Money [star rating='4.8']
  • Affordability [star rating='5']

Mars Fishcare North America Final Thoughts

"I highly recommend this."

My filter including polishing element could not clear it up. The difference is that he was going twice his normal speed. Ever since I made this purchase, my fish are not dying at all. My filter including polishing element could not clear it up. Ever since I made this purchase, my fish are not dying at all. The reviews on people fish dying really spooked me. My filter including polishing element could not clear it up.

Overall Score
4.9

[star rating="4.9"]
(11 Points)

10. Brightwell Aquatics Phosphat-E - Liquid Phosphate Remover for Marine Fish and Reef Aquarium Tank

User Ratings: 77 4

Brightwell Aquatics POE500 First Impressions

"Did a tank cycle."

I decided to pick it up once again and struggled mightily my first few months. I have been battling cloudy water in our small aquarium for two months. Fish are aerobic organisms that are susceptible to ROS. I'm amazed, I'm really amazed that this product worked so well. However, be aware that the dosage starts at 20 gallons. You need to buy an eye dropper for this. I was sort of nervous buy this product and trying it out.

  • Brightwell Aquatics Phosphat-E - Liquid Phosphate Remover for Marine Fish and Reef Aquarium Tank
  • Eliminates reactive phosphate immediately upon addition to aquarium
  • Safe for all inhabitants of reef and marine fish-only aquaria; May be used on an ongoing basis to help control phosphate in heavily-stocked aquaria
  • Each ml eliminates 1 ppm phosphate in 4 US-gallons of water
  • Helps facilitate phosphate removal during periods when dissolved organic material is abundant
  • Formulated by a marine scientist; 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 POE500
  • Treatment Effectiveness [star rating='4.9']
  • Quality [star rating='3.8']
  • Value For Money [star rating='5']
  • Affordability [star rating='4.2']

Brightwell Aquatics POE500 Final Thoughts

"I highly recommend it."

However, be aware that the dosage starts at 20 gallons. I did water changes, but it didn't help. Use a water conditioner that does not remove ammonia. 4-5 squirts in a sink of water, soak my suit 10 min, wring out and hang to dry. Tim's cultures were obviously very alive and active. I'm interested to see how long it works. Sure enough they are back to their healthy coloration and didn't end up dying on me.

Overall Score
4.6

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

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