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
  • Quality
  • Value For Money
  • Affordability

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


(23 Points)

2. MarineLand BIO-Spira Freshwater Bacteria for Aquariums, 3.38-Ounce

User Ratings: 71 9

MarineLand ML90762-00 First Impressions

"Thank you!"

Easy to dispense the product without mess and easy to use per instructions. She seems ok with it she is behaving like herself. I'll continue to use this product, especially after a good tank cleaning. Use a water conditioner that does not remove ammonia. My fish didn't appear negatively effected by it either. 1st day, I put product in tank with Fluval Biological Cleaner for Aquariums also. I wanted to see if it would take the chlorine out of my swimsuit.

  • MarineLand BIO-Spira Freshwater Bacteria for Aquariums, 3.38-Ounce
  • Advanced nitrifies instantly remove harmful ammonia and nitrite
  • Includes sludge cleaning bacteria for a clear, healthy aquarium
  • Prevents new tank syndrome
  • Treats 100 gallons
  • Manufacture: Tetra
  • Product Dimensions: 4 x 1.38 x 5 inches; 4 Ounces
  • Editor's Impressions Of The MarineLand ML90762-00
  • Treatment Effectiveness
  • Quality
  • Value For Money
  • Affordability

MarineLand ML90762-00 Final Thoughts

"Pet Smart knows nothing."

You need to buy an eye dropper for this. She seems ok with it she is behaving like herself. I have two 36 gallon tanks right now. I decided to pick it up once again and struggled mightily my first few months. I know you are going to want to add more chemicals, etc. No exaggeration-- literally cleared overnight. The equation is already done for you if you buy Dr.

Overall Score
4.3


(98 Points)

3. 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)

4. Natural Rapport Aquarium Water Conditioner - The Only All-in-1 Water Conditioner Fish Need - Natural...

User Ratings: 74 4

Natural Rapport First Impressions

"But that wasn't the case!"

It is just as good when compared to other brands of conditioner. Fish possess an antioxidant defense system to reduce the negative effects of ROS. I know you are going to worry about your fish DON'T they are fine. I like that it's a large bottle with multiple uses, so that's nice. We use it when we clean& change out water. Don't know if that made a difference but it didn't hurt. Ever since I made this purchase, my fish are not dying at all.

  • Natural Rapport Aquarium Water Conditioner - The Only All-in-1 Water Conditioner Fish Need - Naturally Detoxifies and Removes Ammonia, Nitrite, Chlorine, and Chloramine (16 fl oz.)
  • PROFESSIONAL GRADE CONDITIONER - For Your Freshwater and Saltwater aquariums. No need for separate steps, supplies, accessories, or chemical kits to treat API stress coats, slime coats. Our professional chlorine remover does it all in one step.
  • SALT & FRESHWATER - Treatments during changes will help your betta, goldfish, or others thrive as it balances pH, adds electrolytes, slime and stress coats for your fish. Also safer for saltwater marine invertebrates, plants and crustaceans.
  • DETOXIFIES & REMOVES HARMFUL CHEMICALS - Quick to remove harmful bacteria such as Ammonia, Nitrate, Chlorine, Chloramine, Heavy Metals, and more. Our 'Natural Choice' Dechlorinator and clarifier does all this plus is safer for your aquarium.
  • ALL-IN-ONE CONDITIONER - Makes your tap water instantly safe by removing harsh chemicals and detoxifies heavy metals. is so effective and safe it is also recommended for aqua live reefs. From beta fish to exotics, our treatment is great for all.
  • 100% SATISFACTION GUARANTEED - Made in the USA, with a 100% Satisfaction Guarantee. We are a family-owned business passionate about making wholesome, natural products to keep your beautiful fresh- or sea salt-water fish safer and tanks healthier.
  • Manufacture: Natural Rapport
  • Product Dimensions: 3 x 3 x 8 inches; 1.2 Pounds
  • Editor's Impressions Of The Natural Rapport
  • Treatment Effectiveness
  • Quality
  • Value For Money
  • Affordability

Natural Rapport Final Thoughts

"I highly recommend it."

I've using this for my betta for several years with every water change. I'm amazed, I'm really amazed that this product worked so well. One planted that has algae problem so bad. Ever since I made this purchase, my fish are not dying at all. It didn't kill the fish or cause any problems with the water so I stuck with it. The aquasafe water conditioner is a fantastic de-chlorinator. Pictures included to see the difference.

Overall Score
4.5


(1399 Points)

5. Brightwell Aquatics Reef Code A - Balanced Calcium and Alkalinity Water Conditioner System for Marin...

User Ratings: 74 1

Brightwell Aquatics RCA2L First Impressions

"5 stars all the way!"

Ever since I made this purchase, my fish are not dying at all. Fish would die occassionally every few weeks or so. This came just in time for my water change day! I'm amazed, I'm really amazed that this product worked so well. Good Product, Good Price Gets five stars! DON'T just wait everything will be fine. I have a Fluval tank and only use their chemicals.

  • Brightwell Aquatics Reef Code A - Balanced Calcium and Alkalinity Water Conditioner System for Marine Fish & Reef Saltwater Aquariums
  • Simplifies calcium and alkalinity maintenance in your aquarium tank
  • The carbonate-bearing component of a two-part method for dosing calcium and carbonates in the same ratio as that found in natural seawater; to be used in conjunction with Reef Code B
  • Benefits reef-building organisms such as corals, clams, and calcareous algae
  • Contains no phosphate, silicate, or organic material; 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 RCA2L
  • Treatment Effectiveness
  • Quality
  • Value For Money
  • Affordability

Brightwell Aquatics RCA2L Final Thoughts

"I couldn't believe it."

The bottle will last me years as it is huge! I decant this to a small 5 oz squeeze bottle and leave the rest in the fridge. I'm hoping this one works out if not I'm sticking to the one I used before. By the following morning, the water was clear of algae. I'll continue to use this product, especially after a good tank cleaning. My water is crystal clear again, and it smells like a healthy fish tank again. Very good product for an unbelievable price.

Overall Score
4.6


(100 Points)

6. Tetra EasyBalance PLUS Water Conditioner for Healthy Water

User Ratings: 74 2

Tetra 77139 First Impressions

"No argument from me."

This is my go to water conditioner and stressed fish treatment. I like API products and this is no different. Easy to dispense the product without mess and easy to use per instructions. I read the reviews, and decided to give this a try. I'm hoping this one works out if not I'm sticking to the one I used before. I even poured in extra to help with the healing. The chloramines contain a small amount of ammonia.

  • Tetra EasyBalance PLUS Water Conditioner for Healthy Water
  • MAINTAINS HEALTHY AQUARIUM WATER Tetra EasyBalance Plus provides a safety net between water changes
  • BALANCES Regulates pH and alkalinity (KH) at recommended levels
  • REMOVES WASTE Reduces nitrates and phosphates due to waste products in water
  • ADDS NUTRIENTS Adds the vitamins minerals and electrolytes needed for vibrant active fish
  • DOSAGE Use weekly to maintain healthy aquarium conditions
  • Age range description: All Ages
  • Keeps aquarium water biologically balanced
  • Manufacture: Tetra
  • Product Dimensions: 1.63 x 3 x 7 inches; 10.3 Ounces
  • Editor's Impressions Of The Tetra 77139
  • Treatment Effectiveness
  • Quality
  • Value For Money
  • Affordability

Tetra 77139 Final Thoughts

"Good, or bad."

Yes I know, they aren't supposed to live that long and no I can't prove it. This is my absolute favorite conditioner I have used for all my aquatic creatures. The bottle will last me years as it is huge! I decided to pick it up once again and struggled mightily my first few months. I recieved it today at 3pm and applied it around 4pm. We use it when we clean& change out water. The aquasafe water conditioner is a fantastic de-chlorinator.

Overall Score
4.5


(291 Points)

7. Acurel Water Clarifier, Aquarium

User Ratings: 79 5

Loving Pets F50 First Impressions

"They eat and poop a lot."

She seems ok with it she is behaving like herself. From their own colon or a hole in the ground. It only requires 3 drops per gallon you add to your tank. This is definitely worth trying if you have cloudy water. Beats the heck out of those expensive suit cleaners. This worked really well for my tank. She seems ok with it she is behaving like herself.

  • Acurel Water Clarifier, Aquarium
  • Clarifies cloudy, Green or polluted Aquarium water
  • Minimum effort for sparkling clear water
  • Safe For Aquarium Fish Plants And Animals
  • Country of origin is United States
  • Manufacture: Acurel (Loving Pets)
  • Product Dimensions: 3.5 x 1.5 x 7 inches; 1.6 Ounces
  • Editor's Impressions Of The Loving Pets F50
  • Treatment Effectiveness
  • Quality
  • Value For Money
  • Affordability

Loving Pets F50 Final Thoughts

"Then go for it."

I decided to pick it up once again and struggled mightily my first few months. Pictures included to see the difference. My fish didn't appear negatively effected by it either. Don't know if that made a difference but it didn't hurt. Dunkin, my Betta doesn't seem to stress out over my adding this. If you're treating injured fins or introducing new fish, this is for you. Do not clean the filters, do not change the filters.

Overall Score
4.5


(2033 Points)

8. T-H Marine U216-FW G-Juice Livewell Treatment - Freshwater, 16 oz.

User Ratings: 88

T. H. Marine U216-FW First Impressions

"I have guppies."

Just an idea incase someone doesn't have a spare dropper. I have been using API on his suits for 3 weeks now and so far so good. But the septic tank bacteria did nothing. During cycling you will be using often. I have had aquariums for 40 years and have always used their product Cycle. No exaggeration-- literally cleared overnight. More doesn't hurt anything, but it's just wasted.

  • T-H Marine U216-FW G-Juice Livewell Treatment - Freshwater, 16 oz.
  • Non-toxic to humans, pets and aquatic life
  • Removes nitrites, ammonia, chlorine, chloramines, and heavy metals
  • Does not contain any salt
  • Promotes healing (torn scales, hook punctures, etc.)
  • Adds essential electrolytes
  • Non-toxic to humans, pets and aquatic life
  • Removes nitrites, ammonia, chlorine, chloramines, and heavy metals
  • Manufacture: T-H Marine
  • Product Dimensions: 225 x 625 x 1100 inches; 1.19 Pounds
  • Editor's Impressions Of The T. H. Marine U216-FW
  • Treatment Effectiveness
  • Quality
  • Value For Money
  • Affordability

T. H. Marine U216-FW Final Thoughts

"It really works."

The afternoon I received this product I added half a dose to each aquarium. It is just as good when compared to other brands of conditioner. When they disinfect a repair site, they are normally only using chlorine. It is much safer to simply to add 3 drops per gallon. I read another review for this product saying they were using API for this purpose. This product is exactly what it says it is. This is the 5th since I put in the product and my tank is crystal clear.

Overall Score
4.8


(220 Points)

9. Rally PRO

User Ratings: 47 23

Rally PRO 13030 First Impressions

"I have a 75gal tank."

I do have the aforementioned uv light working on it. 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. I've used every product on the market and this is the most AMAZING MUST HAVE PRODUCT! I read the instructions, measured out the product, and added it to the tank. I use mine for my beta fish in a 2 gallon tank and need less than a half a cap full. This came just in time for my water change day!

  • Rally PRO
  • Rally PRO is a copper free treatment for freshwater and marine fish with bacterial fin rot, gill flukes or marine parasites (e.g. Marine Velvet, or Clownfish disease).
  • Reef Safe.
  • Safe for all fish, corals and invertebrates.
  • Safe for Nitrosonomas, Nitrobacter and other bacteria essential for biofiltration.
  • Manufacture: Ruby Reef
  • Editor's Impressions Of The Rally PRO 13030
  • Treatment Effectiveness
  • Quality
  • Value For Money
  • Affordability

Rally PRO 13030 Final Thoughts

"This stuff really works."

If you have new tank syndrome then this is the stuff. Tim's cultures were obviously very alive and active. Do not clean the filters, do not change the filters. You need a source of ammonia to feed the bacteria which Dr. This is definitely worth trying if you have cloudy water. This is my go to water conditioner and stressed fish treatment. The afternoon I received this product I added half a dose to each aquarium.

Overall Score
3.5


(4 Points)

10. Fritz Aquatics FritzZyme Monster 360 Concentrated Biological Conditioner for Fresh Water Aquariums

User Ratings: 71 3

Fritz Aquatics 75032 First Impressions

"It will last a long time!"

This allows the conditioner time for its anti-heavy metal ingredients to work fully. Dunkin, my Betta doesn't seem to stress out over my adding this. The chloramines contain a small amount of ammonia. I recieved it today at 3pm and applied it around 4pm. My filter including polishing element could not clear it up. I do not use this as a product to treat my tap water. This water conditioner is a life saver!

  • Fritz Aquatics FritzZyme Monster 360 Concentrated Biological Conditioner for Fresh Water Aquariums
  • Concentrated Biological Aquarium Cleaner for Fresh 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: 9.5 x 3.25 x 3.25 inches; 2.2 Pounds
  • Editor's Impressions Of The Fritz Aquatics 75032
  • Treatment Effectiveness
  • Quality
  • Value For Money
  • Affordability

Fritz Aquatics 75032 Final Thoughts

"I love it."

You need a source of ammonia to feed the bacteria which Dr. It is much safer to simply to add 3 drops per gallon. 1st day, I put product in tank with Fluval Biological Cleaner for Aquariums also. During cycling you will be using often. Dunkin, my Betta doesn't seem to stress out over my adding this. It just hasn't helped with the tint. If you have a freshwater fish tank, I highly recommend this product.

Overall Score
4.6


(71 Points)

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