---
product_id: 49331195
title: "DrTim's Aquatics Reef One & Only Nitrifying Formula – 4 oz – for Reef, Nano & Seahorse Aquariums – New Tank Setup & Water Quality Support – Pure H20 Cleaner"
brand: "dr tim's aquatics"
price: "12870 kr"
currency: ISK
in_stock: true
reviews_count: 8
url: https://www.desertcart.is/products/49331195-drtims-aquatics-reef-one-and-only-nitrifying-formula-4-oz
store_origin: IS
region: Iceland
---

# Supports stable reef & nano ecosystems 4 oz precision liquid formula Boosts natural biological filtration DrTim's Aquatics Reef One & Only Nitrifying Formula – 4 oz – for Reef, Nano & Seahorse Aquariums – New Tank Setup & Water Quality Support – Pure H20 Cleaner

**Brand:** dr tim's aquatics
**Price:** 12870 kr
**Availability:** ✅ In Stock

## Summary

> 🌟 Dive into flawless tank health with DrTim's One & Only!

## Quick Answers

- **What is this?** DrTim's Aquatics Reef One & Only Nitrifying Formula – 4 oz – for Reef, Nano & Seahorse Aquariums – New Tank Setup & Water Quality Support – Pure H20 Cleaner by dr tim's aquatics
- **How much does it cost?** 12870 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/49331195-drtims-aquatics-reef-one-and-only-nitrifying-formula-4-oz)

## Best For

- dr tim's aquatics enthusiasts

## Why This Product

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

## Key Features

- • **Simple, No-Fuss Dosing:** Easy-to-use liquid formula with clear instructions—no guesswork, no overdosing.
- • **Universal Compatibility:** Safe for all aquatic life stages including delicate seahorses—stress-free setup guaranteed.
- • **Tank Stability That Lasts:** Promotes long-term biological filter development for a thriving, flourishing aquatic habitat.
- • **Effortless Aquarium Balance:** Kickstart your reef or nano tank with a perfectly stable environment from day one.
- • **Natural Water Quality Booster:** Enhances beneficial bacteria growth to maintain crystal-clear, healthy water conditions.

## Overview

DrTim's Aquatics Reef One & Only Nitrifying Formula is a 4 oz liquid solution designed to establish and maintain a balanced, healthy environment in new reef, nano, and seahorse aquariums. It supports natural biological filtration, promotes tank stability, and is safe for all aquatic life stages. Easy to dose and use, it ensures optimal water quality and stress-free aquarium setup.

## Description

DrTim's Aquatics Reef One & Only Nitrifying Formula – 4 oz – for Reef, Nano & Seahorse Aquariums – New Tank Setup & Water Quality Support – Pure H20 Cleaner

## Features

- Fish Tank Setup Support: Ideal for new reef, nano, and seahorse aquariums, helping establish a balanced and healthy environment for aquatic life to thrive.
- Promotes Tank Stability: Supports the natural development of a biological filter, ensuring a more stable and flourishing aquarium ecosystem over time.
- Safe for All Aquariums: Perfect for reef, nano, and seahorse tanks, this solution helps set up new aquariums without causing stress to fish and marine life.
- Supports Biological Filtration: Enhances water quality naturally by encouraging beneficial processes essential for a healthy and vibrant aquarium habitat.
- Convenient Liquid Formula: Easy-to-dose and use, with clear instructions to assist aquarium setup and ongoing maintenance for optimal tank health.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Product Dimensions | 6.35 x 3.18 x 12.07 cm; 136.08 g |
| Item model number | 401 |
| Pet Life Stage | All Life Stages |
| Item Form | Liquid |
| Allergen Information | Abalone Free |
| Colour | Reef & Nano |
| Size | 4 oz |
| Number of Items | 1 |
| Quantity | 1 |
| Care Instructions | Shake well before using. Best to use the entire contents at one time. Minimum dose 10 ml (one capful) per 10 gallons of aquarium water. Cannot be overdosed. Turn off UV filter and remove filter socks for 48 hours after adding One and Only. If you need to store before use, you can refrigerate to extend the shelf life. Bring to room temperature before adding contents to your aquarium. |
| Specific Uses | Outdoor, Indoor |
| Batteries required | No |
| Batteries Included | No |
| Item Weight | 136 g |

## Product Details

- **Brand:** Dr Tim's Aquatics
- **Liquid volume:** 4 Fluid Ounces
- **Item weight:** 136 g
- **Item form:** Liquid
- **Target species:** Fish

## Images

![DrTim's Aquatics Reef One & Only Nitrifying Formula – 4 oz – for Reef, Nano & Seahorse Aquariums – New Tank Setup & Water Quality Support – Pure H20 Cleaner - Image 1](https://m.media-amazon.com/images/I/71VUfD9B3nL.jpg)

## Questions & Answers

**Q: What size do I need for a 125 litre tank?**
A: Dr Tims recommends 2oz for 114 litres & 4oz for 227 litres. Does your 125 litre tank have rock in it, which will reduce the litres.

**Q: I received a bottle and it states it expires Aug 2020 does that mean the bacteria is likely dead already?**
A: No. But may loose it’s full potential.

**Q: will this remove green hair algae in a saltwater tank?**
A: I'm not aware it would, but you could contact the company. I would test my water parameters, particularly phosphate. My main tank has been suffering with green hair algae and it's disappearing as the phosphate reduces.

**Q: Can this be used for freshwater tanks as well?**
A: Yes it works 100%

## Customer Reviews

### ⭐⭐⭐⭐⭐ Bacteria in a bottle
*by M***. on 28 September 2024*

Love Dr tims I do

### ⭐⭐⭐⭐⭐ Did the job in my new tank
*by O***4 on 26 September 2023*

I bought this to cycle a new 255 litre reef tank. The instructions were very clear and there are a couple of very useful videos on line. I followed the instructions to the letter in terms of dosing and testing and the cycle happened just as should, going through the various stages. Personally I much prefer to use something like this rather than use a live fish which would likely be stressed by the poor water quality during the cycle. One concern I did have was that if you followed the instructions fully it states that the tank would be ready for fish after 9 days. This certainly wasn’t the case and it wasn’t until day 15 the the nitrate levels had fallen to zero making the tank fully cycled. I would suggest not following the 9 day suggestion but relying on the results from ammonia, nitrite and nitrate tests. However I was still happy with a 15 day cycle so would use this again if I ever start a new tank.

### ⭐⭐⭐⭐ My go to for all my new tanks and established tanks
*by A***  on 20 February 2024*

This product is great for those not patient for a full cycle.Product is great if you want to introduce fish and running a fish only system.If growing corals I recommend using it but also doing a full cycle as the lights can cause a very tough ugly stage

## Frequently Bought Together

- DrTim’s Aquatics Reef One & Only Nitrifying Formula – 4 oz – for Reef, Nano & Seahorse Aquariums – New Tank Setup & Water Quality Support – Pure H20 Cleaner
- DrTim’s Aquatics Ammonium Chloride Solution for Fishless Cycling: 2 oz., Treats 100 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 Iceland*
*Store origin: IS*
*Last updated: 2026-03-11*