DR. TIM'S AQUATICS One & Only Live Nitrifying Bacteria for Reef Aquariums, 2-oz bottle - Chewy.com

Dr. Tim's Aquatics One & Only Live Nitrifying Bacteria for Reef Aquariums

By Dr. Tim's Aquatics
Rated 3.7692 out of 5 stars

$15.00Chewy Price
$21.29Chewy Price
$14.25Autoship Price
Autoship (Save an extra 5%)

Why Autoship?

  • Save 5% on all future Autoship orders
  • Set your schedule based on your pet's needs
  • No fees, no commitments - skip, change or cancel anytime.

In Stock
FREE 1-3 day shipping over $49

About This Item


  • Prevents and eliminates new tank syndrome by instantly working to establish a biofilter in newly set up aquariums.
  • Special blend of nitrifying bacteria rapidly conditions aquarium water so there is no wait needed, you can add fish right away!
  • Naturally removes toxic ammonia and nitrite toxicity in freshwater and saltwater aquariums.
  • No sulfide or other offensive odors so you don’t have worry about overusing.
  • Helps cure live rock and has 100% natural living nitrifiers.

See More




Special Note

  • 2-oz bottle treats up to 30 gallons.
  • 4-oz bottle treats up to 60 gallons.
  • 8-oz bottle treats up to 120 gallons.

Questions & Answers

6 Customer Questions

How much do you use for setting up a new 10 gal reef tank? It will be stock with mostly mushrooms, zoa and few lps.
Answer by ChewyAug 29, 2018
You should use a minimum dose of 10 milliliters -- the equivalent of 2 capfuls -- per 10 gallons of tank you have. Be sure not to use more than the recommended amount.

Does this product get rid of alge and if it doesn't can I use marine algaefix with it
Answer by ChewyMay 07, 2020
Dr. Tim's Aquatics One & Only Live Nitrifying Bacteria for Reef Aquariums does not remove algae.

What is the viable count of nob in one and only. If its a trade secret i will understand
Answer by ChewyOct 29, 2019
Dr. Tim's Aquatics One & Only Live Nitrifying Bacteria for Reef Aquariums contains a minimum of 10^6 nitrifying bacteria cells per milliliter.

Will this work for Fish Only With Live Rock (FOWLR)?
Answer by ChewyJun 24, 2019
This formula can be used on any saltwater, marine, or reef aquarium.

ReviewsWrite a Review

Rated 3.7692 out of 5 stars
13 Reviews
Would recommend to a friend

13 Customer Reviews

Filter by reviews that mention

Rated 1 out of 5 stars
By Daniel on Aug 27, 2021

Expired product.

The bottle that I received is past the best by date. This is live bacteria we are talking about, with a limited shelf life. What a bummer. Shame on you Chewy. Can’t review the product as I haven’t been able to use it.

Rated 5 out of 5 stars
By DawnR on Feb 9, 2021

Dr Tim"s One and Only

The product works great, which is why I ordered it. Chewy sent me expired product. I emailed them about it and to their credit they promptly mailed me a replacement. However, the replacement bottle was also expired in OCT 2020 so I've given up on getting this product from Chewy

Rated 5 out of 5 stars
By Steven on Feb 28, 2021

Great product!!!!!!

This product cycled my new 29 gallon saltwater tank in 3 days the nitrites and ammonia were 0.

Rated 1 out of 5 stars
By pendulum on Jul 28, 2020

Arrived dead?

There are many great reviews of this product. Unfortunately, that hasn't been my experience. After 7 days, no drop in ammonia from 2ppm starting level, no nitrite, no nitrates. It is summer and temperature in the 90's and shipped without any temperature control. I can only assume that it was stored and or shipped in too high of a temperature and the bacterial were killed. I will be purchasing another product.

Rated 4 out of 5 stars
By CADreamer on Jul 8, 2020

Works when you get a good bottle.

So it was in sale so I bought 3 bottles just in case. I'm glad I did because I used one bottle and didn't see any change in 3 days so I added a 1/4 from a new bottle and the very next morning a slight change. So I added another quarter of the bottle and again a little more change. So I added the rest. I'm now day 6 and feel it should be be cycled in a couple days. Long story short... Buy a backup in case.

Rated 3 out of 5 stars
By JIro on Nov 2, 2020

Works? not sure.

Not sure if it worked. Tank is still not cycled. Ammonia level is high.

Rated 5 out of 5 stars
By SoFloNewBieReefer on May 2, 2020

This is liquid gold

Dr. Tim's actually works. It turbo charged my tank's cycle. I used it in conjunction with his ammonia product to fish less cycle the tank. The cycle's establishment completed in three weeks. It was very nice to have clear instructions on how to do this. His website is very informative if you want to follow a process.

Rated 1 out of 5 stars
By Newcustomer on Aug 31, 2020

Expired product

The bottle I received had a best by date of December 2019.

Rated 5 out of 5 stars
By David on Feb 27, 2020

First time using

I used this product for the first time. I had put Reef Rock manmade live rock in a nano tank. The ammonia and nitrite levels were high. I added Dr Tim's bacteria and the levels went to zero in about 5 days.

Rated 4 out of 5 stars
By alanjamesblair on May 19, 2019

Before you buy this, see the vid!

I used this on my new system. I had never done a fishless cycle and I thought it was high time. But BEWARE! What the add and the instructions do not tell you is that you need ammonium chloride to feed those bacteria. So this is NOT a one-and-done. If you don't buy the am-chlo, you'll end up in my situation, feeding an empty tank for almost a month to get the cycle going. All-in-all, I like this product, but I would not buy it again without the am-chlo and I think that should be mentioned in the description.