

⚡ Transform your tank instantly — because your aquatic friends deserve the best!
DrTim's Aquatics Reef One & Only is a 2 oz. concentrated nitrifying bacteria solution designed to instantly establish a natural biofilter in reef, nano, and seahorse aquariums. It eliminates toxic ammonia and nitrites quickly, enabling immediate fish introduction and preventing new tank syndrome. This 100% natural, odor-free formula is scientifically developed and trusted by professionals to maintain a healthy, toxin-free aquatic environment.





| ASIN | B00620GJAM |
| ASIN | B00620GJAM |
| Age Range Description | All Life Stages |
| Best Sellers Rank | #125,804 in Pet Supplies ( See Top 100 in Pet Supplies ) #1,144 in Aquarium Water Treatments |
| Brand Name | DrTim's Aquatics |
| Color | Reef & Nano |
| Customer Reviews | 4.3 4.3 out of 5 stars (270) |
| Date First Available | October 1, 2007 |
| Date First Available | October 1, 2007 |
| Directions | Shake well before using. It is best to use the entire contents at one time. Cannot be overdosed. Add directly to the aquaria. Make sure any UV and ozone systems are off for 48 hours after adding. |
| Included Components | Nitrifying Bacteria |
| Item Dimensions LxWxH | 2 x 1.25 x 4 inches |
| Item Package Dimensions L x W x H | 5.2 x 4.02 x 1.38 inches |
| Item Weight | 0.13 Pounds |
| Item model number | 400 |
| Item model number | 400 |
| Manufacturer | DrTim's Aquatics, LLC |
| Manufacturer | DrTim's Aquatics, LLC |
| Model Name | One & Only REEF-PURE |
| Number of Items | 1 |
| Product Dimensions | 2 x 1.25 x 4 inches; 2.08 ounces |
| Specific Uses for Product | Indoor, Outdoor |
| Style | One & Only REEF-PURE |
| Target Audience Keyword | fish |
| Warranty Description | Manufacturer Warranty |
J**Y
This stuff is AMAZING
This stuff is absolutely amazing. I use it when I set up a new tank, or even sometimes after a water change just to beef up the beneficial bacteria. You can add fish immediately, no more waiting weeks for a tank to cycle. If you worried about over stocking, and about to add another fish, just add another bottle. My tank has never looked so clean and it totally skipped the "ugly stage" that most tanks go through. I always keep an extra bottle on hand just for incase moments. Once I needed to set up a hospital tank for a sick fish, and I didnt have time to wait for the tank to cycle, i just added this and then was good to go. Everyone who has a tank should keep this on hand at all times. It's amazing.
M**A
Perfect for start up
Great for starting up a salt water tank!
A**R
Works Awesome
Great stuff
K**A
Great product… ordered it again!
So I had set up a Biocube 14 in 2011 and used this product to start the cycling process. Followed the instructions and lost nothing. This time around I’m starting another reef tank and going to use this to cycle. Really great product that is designed with the right bacterial content just for Aquariums.
C**S
Be careful with this.... It does a job, but it is hard on an established tank.
Be careful with this, I used the recommended dose, and lost a few fish, they seemed air deprived. I did a huge water change, and save a few. I'm thinking this should only be used in a empty tank, not as maintenance.
A**Y
Good stuff
Wouldn’t start a new tank without this.
D**H
Doesn't work as advertised
Claims to start the tank cycle but this never occurred with our tank. Paired this purchase with their ammonia chloride to feed the bacteria. Readings never budged from 2ppm ammonia. 0 nitrite. 0 nitrate. We were doing a fishless cycle so expected it to take awhile, however the cycle never even began. Buyer beware if you're looking for a decently paced fishless cycle. Product doesn't do as it claims.
C**D
Fast cycle
Cycled my tank in 10 days
C**E
Did what it was suppose to fo
C**Y
Okay I can’t give it 5 stars yet because I wasn’t expecting a tiny bottle. But maybe it’s just suppose to jump start the new tank but I mean for $30 it seems like a lot for so little. I guess we shall see
Trustpilot
1 month ago
1 month ago