---
product_id: 3811535
title: "Dr. Tim’s Aquatics Saltwater One & Only Nitrifying Bacteria – For New Fish Tanks, Aquariums, Water Filtering, Disease Treatment – H20 Pure Fish Tank Cleaner – Removes Toxins – 8 Oz."
brand: "drtim's aquatics"
price: "€ 107.91"
currency: EUR
in_stock: true
reviews_count: 8
category: "Dr Tim's Aquatics"
url: https://www.desertcart.es/products/3811535-dr-tim-s-aquatics-saltwater-one-and-only-nitrifying-bacteria
store_origin: ES
region: Spain
---

# Instant biofilter activation 100% natural & eco-friendly Scientifically backed nitrifying bacteria Dr. Tim’s Aquatics Saltwater One & Only Nitrifying Bacteria – For New Fish Tanks, Aquariums, Water Filtering, Disease Treatment – H20 Pure Fish Tank Cleaner – Removes Toxins – 8 Oz.

**Brand:** drtim's aquatics
**Price:** € 107.91
**Availability:** ✅ In Stock

## Summary

> 🌊 Transform your tank, transform your aquatic world!

## Quick Answers

- **What is this?** Dr. Tim’s Aquatics Saltwater One & Only Nitrifying Bacteria – For New Fish Tanks, Aquariums, Water Filtering, Disease Treatment – H20 Pure Fish Tank Cleaner – Removes Toxins – 8 Oz. by drtim's aquatics
- **How much does it cost?** € 107.91 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.es](https://www.desertcart.es/products/3811535-dr-tim-s-aquatics-saltwater-one-and-only-nitrifying-bacteria)

## Best For

- drtim's aquatics enthusiasts

## Why This Product

- Trusted drtim's aquatics brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Rapid Tank Cycling:** Kickstart your saltwater aquarium in days, not weeks.
- • **Trusted by Experts:** Developed with marine biology expertise and peer-reviewed research.
- • **Eco-Conscious Formula:** All-natural, odorless, and safe for fish & corals alike.
- • **Stress-Free Fish Care:** Add new fish immediately with confidence—no more waiting or guesswork.
- • **Toxin-Free Environment:** Eliminates ammonia & nitrites instantly for crystal-clear water.

## Overview

Dr. Tim’s Aquatics Saltwater One & Only is a scientifically formulated nitrifying bacteria solution designed to rapidly cycle new saltwater aquariums by converting toxic ammonia and nitrites into harmless compounds. This 100% natural, eco-friendly treatment accelerates tank setup, supports healthy fish and coral environments, and is trusted by professionals and hobbyists alike for maintaining pristine water quality and preventing new tank syndrome.

## Description

desertcart.com : Dr. Tim’s Aquatics Saltwater One & Only Nitrifying Bacteria – For New Fish Tanks, Aquariums, Water Filtering, Disease Treatment – H20 Pure Fish Tank Cleaner – Removes Toxins – 8 Oz. : Aquarium Treatments : Pet Supplies

Review: Great Product, Follow the Directions! - I used this with the Dr tims ammonia to cycle my tank, it cycled in about a week. I had dry rock in my tank with live sand and it cycled very quickly, i have also been using it when i add new fish to the tank as a precaution and have not had anything but 0 ammonia, 0 nitrites and very low nitrates while using this. I know you can use this and add a fish or two immediately in bigger tanks (>75 gallons) and you can probably do it with one fish in smaller tanks but after researching a lot, i used the ammonia in my nuvo 38 just to be safe, after i cycled the tank i added 3 tiny Blue/Green Chromis with another half bottle just to be safe and saw NO change in my water parameters. The stuff works! My degree is in Biology specifically micro biology and I went to a school that has a big fish health biology program so a lot of my classes were related to fish, after researching Dr Tims and reading his actual peer reviewed research on the website and based on my own experience with it, I would HIGHLY recommend this if you are using dry rock when starting a tank. Also, i have yet to have a diatom bloom in this tank, which is a huge bonus. I had read from other reviewers that they didn't have the bloom and i didn't believe it. The biggest thing though is read the directions and follow them!
Review: Worked as advertised, actually BETTER!! - My son and I set up a 75 gallon marine aquarium and had problems from the get go. Fish dying, ammonia through the roof, etc. We put in one bottle about a year ago. No trace of ammonia, nitrates, nitrites, etc. since. BUT the real story...haven't lost ONE fish. It isn't a cure-all OR an alternative to regular tank maintence, but it is certainly a safe, effective, and INEXPENSIVE tank treatment. And on a side note, we lost power for 6 days after Hurricane Sandy. Didn't lose a single fish. I can't say for certain that Dr. Tim's product had anything to do with that, but I am pretty sure that if I didn't have a strong, healthy tank it would have been a different story.

## Features

- THE BEST WAY TO SANITIZE A SALTWATER AQUARIUM: Saltwater One & Only from DrTim’s Aquatics quickly converts waste in aquariums and fish tanks to a non-toxic form. Utilize this powerful solution when setting up new fish tanks, while cleaning filters or adding new fish or after a water change.
- REMOVES HARMFUL TOXINS FROM SALTWATER FISH TANKS: Even with regular water changes and maintenance, aquariums and fish tanks produces bad bacteria and it can take up to 30 days to eliminate waste. Not with Saltwater One & Only because this solution instantly creates a bio filter to remove nitrite and toxic ammonia naturally.
- 100% NATURAL, ECO-FRIENDLY FISH TANK CLEANER: There’s no need to wait when treating your new saltwater aquarium or fish tank with One & Only. This fish tank cleaner eliminates new tank syndrome and does not include sulfur or other offensive odors.
- AQUARIUM SUPPLIES YOU NEED: Offer your pet fish and corals an environment in which they can thrive with this Saltwater One & Only for saltwater fish tanks and aquariums. Saltwater One & Only is available in quantities that include 2, 4, 8, 16, 32, 64 and 128 ounces.
- HIGH-QUALITY AQUARIUM PRODUCTS: DrTim’s Aquatics offers an expansive line of aquarium products used by professionals and residential customers. Based on years of experience in marine biology, DrTim’s Aquatics’ products utilize his vast knowledge and are backed by scientific evidence and innovative research.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B002DVRHMS |
| ASIN  | B002DVRHMS |
| Age Range Description | All Life Stages |
| Best Sellers Rank | #57,748 in Pet Supplies ( See Top 100 in Pet Supplies ) #557 in Aquarium Water Treatments |
| Brand Name | DrTim's Aquatics |
| Color | Saltwater |
| Customer Reviews | 4.2 4.2 out of 5 stars (302) |
| Date First Available | June 8, 2005 |
| Date First Available  | June 8, 2005 |
| 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 | DrTim’s Aquatics Saltwater One & Only Nitrifying Bacteria |
| Is Discontinued By Manufacturer  | No |
| Item Dimensions LxWxH | 3.1 x 1.5 x 6 inches |
| Item Package Dimensions L x W x H | 5.94 x 3.07 x 1.42 inches |
| Item Weight | 9.6 ounces |
| Item model number | 202 |
| Item model number  | 202 |
| Manufacturer | Dr Tim's Aquatics |
| Manufacturer  | Dr Tim's Aquatics |
| Model Name | One & Only NaH2O-PURE |
| Number of Items | 1 |
| Product Dimensions  | 3.1 x 1.5 x 6 inches; 9.6 ounces |
| Specific Uses for Product | Indoor, Outdoor |
| Style | One & Only NaH2O-PURE |
| Target Audience Keyword | fish |

## Product Details

- **Brand:** DrTim's Aquatics
- **Item Form:** Liquid
- **Item Weight:** 9.6 ounces
- **Liquid Volume:** 8 Fluid Ounces
- **Manufacturer:** Dr Tim's Aquatics

## Images

![Dr. Tim’s Aquatics Saltwater One & Only Nitrifying Bacteria – For New Fish Tanks, Aquariums, Water Filtering, Disease Treatment – H20 Pure Fish Tank Cleaner – Removes Toxins – 8 Oz. - Image 1](https://m.media-amazon.com/images/I/61JSyqsoEJL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Product, Follow the Directions!
*by R***T on September 17, 2012*

I used this with the Dr tims ammonia to cycle my tank, it cycled in about a week. I had dry rock in my tank with live sand and it cycled very quickly, i have also been using it when i add new fish to the tank as a precaution and have not had anything but 0 ammonia, 0 nitrites and very low nitrates while using this. I know you can use this and add a fish or two immediately in bigger tanks (>75 gallons) and you can probably do it with one fish in smaller tanks but after researching a lot, i used the ammonia in my nuvo 38 just to be safe, after i cycled the tank i added 3 tiny Blue/Green Chromis with another half bottle just to be safe and saw NO change in my water parameters. The stuff works! My degree is in Biology specifically micro biology and I went to a school that has a big fish health biology program so a lot of my classes were related to fish, after researching Dr Tims and reading his actual peer reviewed research on the website and based on my own experience with it, I would HIGHLY recommend this if you are using dry rock when starting a tank. Also, i have yet to have a diatom bloom in this tank, which is a huge bonus. I had read from other reviewers that they didn't have the bloom and i didn't believe it. The biggest thing though is read the directions and follow them!

### ⭐⭐⭐⭐⭐ Worked as advertised, actually BETTER!!
*by E***. on January 14, 2013*

My son and I set up a 75 gallon marine aquarium and had problems from the get go. Fish dying, ammonia through the roof, etc. We put in one bottle about a year ago. No trace of ammonia, nitrates, nitrites, etc. since. BUT the real story...haven't lost ONE fish. It isn't a cure-all OR an alternative to regular tank maintence, but it is certainly a safe, effective, and INEXPENSIVE tank treatment. And on a side note, we lost power for 6 days after Hurricane Sandy. Didn't lose a single fish. I can't say for certain that Dr. Tim's product had anything to do with that, but I am pretty sure that if I didn't have a strong, healthy tank it would have been a different story.

### ⭐⭐⭐⭐⭐ Must have!!
*by T***A on August 22, 2018*

Must have to help break down the ammonia in the water! It starts the bacteria process eliminates cloudy water and makes the tank ready for fish. Its good to get this once a year to ensure your tank has the proper bacteria in it. water changes may depenish the amount of bacteria. **Attention** The bacteria will drop O2 levels in the water that may cause fish to die. Use as instructed dont use the whole bottle!

## Frequently Bought Together

- Dr. Tim’s Aquatics Saltwater One & Only Nitrifying Bacteria – For New Fish Tanks, Aquariums, Water Filtering, Disease Treatment – H20 Pure Fish Tank Cleaner – Removes Toxins – 8 Oz.
- DrTim’s Aquatics Ammonium Chloride Solution for Fishless Cycling - 4 oz., Treats 200 gal. – Fish Tank Cleaner for Saltwater, Freshwater & Reef Aquariums
- API SALTWATER MASTER TEST KIT 550-Test Saltwater Aquarium Water Test Kit

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*Product available on Desertcart Spain*
*Store origin: ES*
*Last updated: 2026-01-29*