Editor's Choice - Our Favorite MarineLand Aquarium Water Treatments

1. MarineLand Diamond Media Premium Activated Carbon, Blacks & Grays, 40-Ounce (PA0373)

User Ratings: 82 1

MarineLand PA0373 First Impressions

"I LOVE PRISTINE!"

Fish possess an antioxidant defense system to reduce the negative effects of ROS. This is my absolute favorite conditioner I have used for all my aquatic creatures. My water is crystal clear like the first day i filled it and i could be happier. However, be aware that the dosage starts at 20 gallons. 4-5 squirts in a sink of water, soak my suit 10 min, wring out and hang to dry. We use it when we clean& change out water. I didn't purchase this for an aquarium.

  • MarineLand Diamond Media Premium Activated Carbon, Blacks & Grays, 40-Ounce (PA0373)
  • FOR CHEMICAL aquarium FILTRATION Black Diamond Premium Activated Carbon removes odors discoloration and impurities for clear sparkling aquarium water
  • SPECIALLY FORMULATED Composed of heat-activated bituminous coal-based carbon
  • FOR ALL FILTERS Ideal for use in all aquarium filters
  • MARINELAND FILTRATION PRODUCTS Count on Marineland brand for the most reliable technically advanced aquariums and accessories on the market
  • Included Components: Trusted Marineland Carbon Specifically sized to be more efficient Premium Black Diamond works as much as twice as fast as the competition
  • Manufacture: Marineland
  • Product Dimensions: 5.5 x 5 x 10 inches; 1 Pounds
  • Editor's Impressions Of The MarineLand PA0373
  • Treatment Effectiveness
  • Quality
  • Value For Money
  • Affordability

MarineLand PA0373 Final Thoughts

"This product is amazing."

Fish possess an antioxidant defense system to reduce the negative effects of ROS. Easy to dispense the product without mess and easy to use per instructions. I decant this to a small 5 oz squeeze bottle and leave the rest in the fridge. This only applies to the 1st application. DON'T just wait everything will be fine. I have been using API on his suits for 3 weeks now and so far so good. Crystal clear after changing water and adding this to my 2.

Overall Score
4.7


(4040 Points)

Peoples Choice - Other Highly Rated MarineLand Aquarium Water Treatments

2. MarineLand Bio-Spira Freshwater Bacteria, for Starting New Aquariums, 8.54-Ounce

User Ratings: 78 6

MarineLand First Impressions

"A MUST BUY!"

But the septic tank bacteria did nothing. The reviews on people fish dying really spooked me. If you have a freshwater fish tank, I highly recommend this product. Pictures included to see the difference. It's water change day so I did this step first then started cleaning the tank. Dunkin, my Betta doesn't seem to stress out over my adding this. The afternoon I received this product I added half a dose to each aquarium.

  • MarineLand Bio-Spira Freshwater Bacteria, for Starting New Aquariums, 8.54-Ounce
  • START A NEW AQUARIUM INSTANTLY Beneficial Marineland Bio-Spira Freshwater Bacteria prevents new tank syndrome and instantly cycles new aquariums when dosed as directed
  • IDEAL FOR Use when adding new fish for filter maintenance and during monthly water changes
  • ADVANCED NITRIFIERS Removes harmful ammonia and nitrate from aquarium water
  • REDUCES SLUDGE Includes heterotropic cleaner bacteria for a clear healthy aquarium
  • MAINTENANCE Add monthly as directed to replenish and boost beneficial bacteria
  • Editor's Impressions Of The MarineLand
  • Treatment Effectiveness
  • Quality
  • Value For Money
  • Affordability

MarineLand Final Thoughts

"He was fine in no time."

Makes me want to get more aquarium's, lol. Yes I know, they aren't supposed to live that long and no I can't prove it. I know you are going to want to add more chemicals, etc. Boy, I thought I was having trouble with my filter. I have been battling cloudy water in our small aquarium for two months. By the following morning, the water was clear of algae. DON'T just wait everything will be fine.

Overall Score
4.5


(226 Points)

3. 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)

4. (2 Pack) API Stress Zyme Freshwater and Saltwater Aquarium Cleaning Solution

User Ratings: 82

API First Impressions

"I highly recommend it."

Easy to dispense the product without mess and easy to use per instructions. I did water changes, but it didn't help. Fish possess an antioxidant defense system to reduce the negative effects of ROS. This is only temporary till I get a spare dropper. Do not clean the filters, do not change the filters. Makes me want to get more aquarium's, lol. Ever since I made this purchase, my fish are not dying at all.

  • (2 Pack) API Stress Zyme Freshwater and Saltwater Aquarium Cleaning Solution
  • Contains 2 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 and algae-free
  • Adds beneficial bacteria for a healthy aquarium
  • Pack of 2
  • Manufacture: API
  • Product Dimensions: 2.5 x 2.5 x 8.8 inches; 2.55 Pounds
  • Editor's Impressions Of The API
  • Treatment Effectiveness
  • Quality
  • Value For Money
  • Affordability

API Final Thoughts

"I love this stuff!"

Fish are aerobic organisms that are susceptible to ROS. The chloramines contain a small amount of ammonia. 2nd day kinda noticed a slight change in water. It is just as good when compared to other brands of conditioner. No observable signs of stress in the fish. When they disinfect a repair site, they are normally only using chlorine. It has been 4 days and our beta is loving the clearer water.

Overall Score
4.8


(60 Points)

5. Brightwell Aquatics NeoTiger KH+/GH+ - Establishes Mineral Balance in Purified and Soft Water for Sh...

User Ratings: 58 20

Brightwell Aquatics NTKHGH2L First Impressions

"So easy to use."

No observable signs of stress in the fish. I could see it working immediately which was pretty wild. I know you are going to want to add more chemicals, etc. Crystal clear after changing water and adding this to my 2. Way to go Fluval keep up the good WORK! Good Product, Good Price Gets five stars! If either or both ammonia and Nitrite are above 1ppm do not add ammonia.

  • Brightwell Aquatics NeoTiger KH+/GH+ - Establishes Mineral Balance in Purified and Soft Water for Shrimp and Freshwater Aquariums,
  • Establishes an optimal mineral balance in water that has been purified (reverse osmosis, deionization) or is exceedingly soft (well water in forested regions) for all freshwater shrimp aquaria, as well as aquaria housing fishes indigenous to forested and/or riverine habitats
  • Provides a beneficial ratio of potassium, calcium, magnesium, and sodium, elements which are vital to the overall health and osmoregulation of fishes, invertebrates, and many aquatic plants
  • May be used to establish water parameters, to replenish depleted concentrations in tanks that rarely receive a water change, and to re-establish beneficial mineral concentrations in aquaria following large water changes
  • Formulated utilizing extensive data on the ionic composition of river water from several tropical forested regions
  • Age range description: All Life Stages
  • Manufacture: Brightwell Aquatics
  • Editor's Impressions Of The Brightwell Aquatics NTKHGH2L
  • Treatment Effectiveness
  • Quality
  • Value For Money
  • Affordability

Brightwell Aquatics NTKHGH2L Final Thoughts

"I recommend."

I use mine for my beta fish in a 2 gallon tank and need less than a half a cap full. I like that it's a large bottle with multiple uses, so that's nice. My fish didn't appear negatively effected by it either. I could see it working immediately which was pretty wild. I like that it's a large bottle with multiple uses, so that's nice. If you're serious about fish keeping, always quarantine and always use Stress Coat! I have been using API on his suits for 3 weeks now and so far so good.

Overall Score
3.7


(13 Points)

6. Tetra Usa Inc. Aquasafe Plus 1 Step 33oz

User Ratings: 88 3

Tetra ATS16163 First Impressions

"I love this product."

I tried it without the water change and really didn't make a difference. I've had my fishy for 5 years now and I would say it's ALL because of Fluval. Fish seem healthy and active during use. My filter including polishing element could not clear it up. I've used it for years with great results. Just an idea incase someone doesn't have a spare dropper. I decant this to a small 5 oz squeeze bottle and leave the rest in the fridge.

  • Tetra Usa Inc. Aquasafe Plus 1 Step 33oz
  • Tetra - TETRA AQUASAFE 1STEP 33 OZ
  • with Biometric All the features of today's Aquasafe
  • Manufacture: TETRA USA INC.
  • Editor's Impressions Of The Tetra ATS16163
  • Treatment Effectiveness
  • Quality
  • Value For Money
  • Affordability

Tetra ATS16163 Final Thoughts

"This product is AMAZING!"

I hope I made the right decision, Betty is our family pet and is really loved! You have to understand when to use this product, and what is is used for. I didn't purchase this for an aquarium. Crystal clear after changing water and adding this to my 2. I read the instructions, measured out the product, and added it to the tank. It's an All Natural Product with out of this world results. I intend to use this for every aquarium or pond I start.

Overall Score
4.8


(193 Points)

7. Fluval Water Conditioner for Aquariums, 2.1-Quart

User Ratings: 89 2

Fluval A8345A2 First Impressions

"Still no big changes."

You need to buy an eye dropper for this. Easy to dispense the product without mess and easy to use per instructions. 4-5 squirts in a sink of water, soak my suit 10 min, wring out and hang to dry. My water is crystal clear like the first day i filled it and i could be happier. This is the 5th since I put in the product and my tank is crystal clear. If you're treating injured fins or introducing new fish, this is for you. If either or both ammonia and Nitrite are above 1ppm do not add ammonia.

  • Fluval Water Conditioner for Aquariums, 2.1-Quart
  • Performance driven at affordable prices
  • Package Dimensions: 22.86 H x 8.38 L x 17.53 W (centimetres)
  • Package Weight: 2.2 kilograms
  • Country of Origin : Canada
  • Manufacture: Rolf C. Hagen (USA) Corp.
  • Product Dimensions: 3.3 x 6.9 x 9 inches; 4.8 Pounds
  • Editor's Impressions Of The Fluval A8345A2
  • Treatment Effectiveness
  • Quality
  • Value For Money
  • Affordability

Fluval A8345A2 Final Thoughts

"They eat and poop a lot."

Beats the heck out of those expensive suit cleaners. I recieved it today at 3pm and applied it around 4pm. I've used it for years with great results. It gets rid of the chlorine in tap water. I decant this to a small 5 oz squeeze bottle and leave the rest in the fridge. DON'T just wait everything will be fine. I've always had a love for fish and had a few tanks when I was younger.

Overall Score
4.8


(207 Points)

8. ESV Aquatics Bionic 2-Part Calcium Buffer System for Aquarium

User Ratings: 82 3

ESV Aquatics 898636002211 First Impressions

"I recommend."

I could see it working immediately which was pretty wild. My water was cloudy with a very fine misty haze. I know you are going to want to add more chemicals, etc. We use it when we clean& change out water. No exaggeration-- literally cleared overnight. I have a great pump and uv light but still had cloudy-ish water. This is my absolute favorite conditioner I have used for all my aquatic creatures.

  • ESV Aquatics Bionic 2-Part Calcium Buffer System for Aquarium
  • The calcium buffer system is a two-component liquid supplement system that is simple, easy to use and the best alternative to a calcium reactor.
  • The Calcium Buffer System maintains calcium and alkalinity levels with no mixing of powders, disruption of ionic balance, or addition of organic chemicals.
  • It helps restore inorganic ions lost from protein skimming and also helps maintain the ionic balance of your aquarium water.
  • The best, simplest and most economical coral reef aquarium maintenance and supplement system to help coral grow and thrive and improve color for your saltwater aquarium.
  • In addition to supplying highly concentrated calcium and carbonate alkalinity required for calcification, B-Ionic Calcium Buffer System is also formulated to provide all other important major, minor, and trace elements in the proper ratios to duplicate the composition of synthetic seawater.
  • Manufacture: Deepwater Aquatics Distribution
  • Product Dimensions: 8 x 3 x 6 inches; 4 Pounds
  • Editor's Impressions Of The ESV Aquatics 898636002211
  • Treatment Effectiveness
  • Quality
  • Value For Money
  • Affordability

ESV Aquatics 898636002211 Final Thoughts

"I was getting 30-40 ppm."

Boy, I thought I was having trouble with my filter. It has been 4 days and our beta is loving the clearer water. If you're serious about fish keeping, always quarantine and always use Stress Coat! Fish seem healthy and active during use. It took a couple of days to clear but it works. I'm interested to see how long it works. The equation is already done for you if you buy Dr.

Overall Score
4.7


(313 Points)

9. Brightwell Aquatics Microbacter Start XLM - Live Bacteria Culture to Establish Biological Filtration...

User Ratings: 78 6

Brightwell Aquatics BACSTARTXLM2L First Impressions

"Give it a shot."

I could see it working immediately which was pretty wild. Boy, I thought I was having trouble with my filter. 1st day, I put product in tank with Fluval Biological Cleaner for Aquariums also. He started making bubble nests again which ne never did when it was super cloudy. 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. It has been 4 days and our beta is loving the clearer water.

  • Brightwell Aquatics Microbacter Start XLM - Live Bacteria Culture to Establish Biological Filtration and Nitrification in Saltwater Marine Reef Aquariums
  • Super concentrated 15x suspension of live non-pathogenic microbes, specifically formulated to extremely rapidly establish biological filtration in new aquarium set-ups, and to enhance the rate of nitrification in existing systems.
  • Useful for rapidly re-establishing nitrification bacteria in case of an emergency.
  • Particularly useful in aquaria with high population densities and when adding new fish.
  • Helpful to re-establish nitrifying bacteria after cleaning rocks and surfaces and after use of medications. 1. Rapid reduction of ammonia, and nitrite. 2. Prevents “new Tank syndrome. ”
  • Supplied in a proprietary base which provides for maximum longevity.
  • Manufacture: Brightwell Aquatics
  • Editor's Impressions Of The Brightwell Aquatics BACSTARTXLM2L
  • Treatment Effectiveness
  • Quality
  • Value For Money
  • Affordability

Brightwell Aquatics BACSTARTXLM2L Final Thoughts

"I love this stuff!"

I do not use this as a product to treat my tap water. It's water change day so I did this step first then started cleaning the tank. This is only temporary till I get a spare dropper. I'm hoping this one works out if not I'm sticking to the one I used before. Beats the heck out of those expensive suit cleaners. I read the reviews, and decided to give this a try. Use a water conditioner that does not remove ammonia.

Overall Score
4.5


(134 Points)

10. 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)

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