Search  for anything...
Activ Betta

Activ Betta Bio-Activ Live Aqueous Solution – 1 Gallon – Instant Aquarium Cycling, Denitrifying Formula & Trace Elements for Betta Fish Tanks & Freshwater Aquariums

  • Based on 869 reviews
Condition: New
Checking for the best price...
$21.24 Why this price?
Save $1.42 was $22.66

Buy Now, Pay Later

As low as $5 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

FREE 30-day refund/replacement

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

Availability: In Stock.
Fulfilled by Amazon
Arrives Tuesday, Mar 17
Order within 9 hours and 9 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Features

  • Creates a well-balanced habitat that supports natural processes, helping maintain a stable environment for fish and aquatic life while reducing the time needed for aquarium setup.
  • 100% natural freshwater solution, free from chlorine, heavy metals, and additives, providing a safe and stable water environment for Betta fish and other freshwater species.
  • Helps sustain a thriving aquatic ecosystem by encouraging natural biofilm formation and aiding in the breakdown of organic waste, supporting long-term water stability.
  • Enriched with essential trace elements and natural compounds that contribute to the well-being of fish, invertebrates, and aquatic plants, fostering a healthy freshwater habitat.
  • Supplies key nutrients that promote strong root development and optimal absorption, encouraging lush plant growth in freshwater tanks while supporting a balanced aquatic environment.

Brand: Activ Betta


Liquid Volume: 1 Gallons


Item Form: Liquid


Manufacturer: Nature's Ocean


UPC:


Product Dimensions ‏ : ‎ 12.6 x 7.99 x 7.28 inches; 8.2 Pounds


Item model number ‏ : ‎ Nature's Ocean


Date First Available ‏ : ‎ March 1, 2019


Manufacturer ‏ : ‎ Nature's Ocean


Best Sellers Rank: #8,352 in Pet Supplies (See Top 100 in Pet Supplies) #59 in Aquarium Water Treatments


#59 in Aquarium Water Treatments:


Customer Reviews: 4.6 4.6 out of 5 stars (906)


Item Weight: 8.18 pounds


Manufacturer: Nature's Ocean


Item model number: Nature's Ocean


Date First Available: March 1, 2019


Item Package Dimensions L x W x H: 11.85 x 6.06 x 5.98 inches


Item Dimensions LxWxH: 12.6 x 7.99 x 7.28 inches


Brand Name: Activ Betta


Target Audience Keyword: fish


Directions: Activ Betta Bio-Activ Live Betta Water - 1 Gallon - Instant Cycling, No Chlorine, Balanced Formula with Live Bacteria for Freshwater Aquariums


Model Name: Nature's Ocean


Color: No Color


Size: 1 gallon (Pack of 1)


Included Components: Activ Betta Bio-Activ Live Betta Water


Specific Uses for Product: Indoor


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Mar 17

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Pricey but effective
Size: 1 gallon (Pack of 1)
Does what I need it to do but so pricey 😭😭
Reviewed in the United States on November 25, 2025 by Destiny
    • Would recommend
Size: 1 gallon (Pack of 1)
Great product nice having it delivered directly to the house. It was getting hard to find beta water at pet stores.
Reviewed in the United States on November 2, 2025 by Jeffrey C.
    • Betta’s review
Size: 1 gallon (Pack of 1)
Okay yes it works well. Might even have everything my betta needs. But also using distilled water, and 3 drops of of crystal pro aquatics water balancer was much more money efficient. Both keep betta alive, I might stick to my distilled water with the 3 drops that cost no more then 10$ for 5 gallon tank. Or use 4 of these big expensive betta water that cost more then 50$… great product though. ... show more
Reviewed in the United States on September 13, 2025 by sandracharles
    • Leaking water
Size: 1 gallon (Pack of 1)
My two beta waters were leaking
Reviewed in the United States on November 5, 2025 by Linda Gray
    • Economical very easy to use
Size: 1 gallon (Pack of 1)
I have 3 AQUAPONIC Bette aquarium with plants. I use mostly Betta water. I'm glad I found on AMAZON this gallon of Betta water. I change the water twice a week. So it is very useful and i continue to order it. It is economical to use the gallon than the bottles.. Delivered to my home almost ahead of time most of the time. Great product. I would recommend it to any with fresh water fish and Betta. The Betta are all doing well (3) and happy fish...and customer. ... show more
Reviewed in the United States on July 20, 2021 by La Terre Promise
    • The best!!
Size: 1 gallon (Pack of 1)
I couldn’t balance my own tap water, when we got our beta fish, for the life of me. Luckily, I got this water delivered by Amazon, ASAP, and now, our little fish friend has a great tank. The water comes, ready to use. You just pour it into your tank, and you’re ready to go. It appears clear, so you won’t have foggy water. The container it comes in isn’t the most durable container, but it holds up just fine. The water is balanced perfectly for your fish, to keep them as healthy as possible and looking their very best. This water works great, and will make your tank water the color of water- crystal clear! ... show more
Reviewed in the United States on June 20, 2024 by Alexandra Fisher
    • Our Betta fish have always loved Activ Beta
Size: 1 gallon (Pack of 1)
Review Image by P. Andrew Nawrocki P. Andrew Nawrocki
Makes our Berra fish “Cooper” more lively, playful and inquisitive. We always buy Activ Beta. I don’t know why price varies as often as it does though. Is this a supply and demand issue? I don’t but as much (obviously) when the price goes up as much S it was in September. It is more reasonable now but the smaller bottles are still twice what they once were. Will they come down in price eventually? Iee have purchased Activ Beta for over three years now at an average of three gallons per month. ... show more
Reviewed in the United States on December 4, 2021 by P. Andrew Nawrocki P. Andrew Nawrocki
    • For betta's
Size: 1 gallon (Pack of 1)
Review Image by Rebecca W Rebecca W
Review Image by Rebecca W Rebecca W
Review Image by Rebecca W Rebecca W
Review Image by Rebecca W Rebecca W
The media could not be loaded. I really like the water. I can tell that it has vitamin minerals in it. Because my Beta has been just swimming around the tank. He's been flaring. He's been happy. I can tell that. He is really enjoying himself. I've noticed his colors even 24 hours that he started. Brightening up and I didn't put anything in the water. Very safe for Beta fish. I'm going to continue buying this product for my Beta fish. Also, when I do water changes. I really don't have to worry about any chemicals. Anything like that because it is completely a 100% safe. And it is a whole lot better buying one gallon. For the price It is so worth it. ... show more
Reviewed in the United States on December 13, 2023 by Rebecca W Rebecca W

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...