Live Rock

Coralline Algae in a Bottle
5.00 out of 5 based on 4 customer ratings
(4 Review (s) / Add your Review)


Avaiability: in stock

Purple Helix® Coralline Algae in a Bottle contains both live coralline algae spores and nitrifying bacteria to help you quickly get your aquarium broken in and cycled. Contains a minimum of 6 different species of coralline algae, each with a different color. There is no faster way to turn your bare base rocks into beautiful and vividly colored live rock!

Coralline Algae in a Bottle, Purple Helix®

Coralline Algae in a Bottle is the ONLY product developed in a laboratory that contains actual live algae spores. Other similar products are simply a mixture of calcium and magnesium, both of which are already contained in all salt mixes, and are rarely ever lacking in a newly setup aquarium. If your levels are not low then using these “purple algae accelerators” provide absolutely nothing and we don’t want you to fall for the marketing hype.

Coralline Algae in a Bottle is available only online. You won’t find it on the shelves of big chain stores because it is a live product and has a shelf life of only 14 days. Most marine bacteria will not survive more than a few weeks without oxygen and a source of energy. This is the reason for the effectiveness of this product.  Every order is bottled fresh and does not sit on a shelf for a year.


Coralline Algae & Nitrifying Bacteria:

  • Unique 2 in 1 formula contains both live coralline algae spores and active nitrifying bacteria.
  • Every bottle includes a minimum of 6 separate species of coralline, this maximizes the color variations and varieties that will populate throughout your tank.
  • Purple Helix blend algae strains are highly epiphytic stains that will help to outcompete other nuisance algae and diatoms.
  • Effective in improving water quality by controlling ammonia and nitrite levels.
  • Aids in rapidly establishing your tanks biological filtration using fresh multi-strain bacteria bottled on the day that it is shipped.
  • 100% all natural formula. No sulfur, copper, or phosphates.
  • Highest concentration of beneficial nitrifying bacteria which remove harmful nitrogenous waste.
  • Establishes a natural organic balance in your aquarium.
  • Helps cycle new fish tanks and eliminate new tank syndrome.
  • Safe for use in all reef tanks and with all species of fish and coral.


Use when setting up a new aquarium, when adding new rock or substrate to your tank, and to boost the color and diversity of existing live rock.
Entire contents must be used within 14 days of bottling date. Every order is bottled on the date that it ships.
For saltwater use only.
1 8oz. bottle treats up to 50 gallons.


Purified seawater, lab cultured coralline algae spores, nitrifying marine bacteria (heterotrophic, chemolithotrophic and autotrophic), calcium carbonate, potassium carbonate ion buffer.


We ship 6 days a week via USPS First Class Mail. Most orders ship out within 6 hours of placing your order.
***SPECIAL OFFER***  Order 2 or more bottles and get a free upgrade to USPS Priority Shipping and you will receive your order within 2-3 days.


Giving Back:
15% of the proceeds from every bottle is put towards building local reefs. To date we have added over 300,000 lbs of new reef material and over 43,500 sq ft of newly created coral reefs off shore in the Atlantic Ocean.  We hope to achieve our goal of 1,000,000 lbs by the end of 2018.  Thank you for being a direct part of our efforts.

Learn more about our coralline algae for sale here:  Coralline Algae – The Ultimate Guide 


Purple Helix® Coralline Algae in a Bottle is developed and manufactured by ARC, a certified aquaculture laboratory licensed under the National Oceanic and Atmospheric Administration, the Department of Agriculture, and the Florida Fish and Wildlife Conservation Commission.   Coralline Algae in a Bottle ® & Purple Helix ® are registered trademarks and intellectual property of ARC Reef 2017.



4 reviews for Coralline Algae in a Bottle

  1. Rated 5 out of 5

    Jason B. Aaron

    Worked exactly as expected. Had coralline algae growing in my tank in a couple of weeks instead of a few months. Very impressed, will definitely recommend.

  2. Rated 5 out of 5

    Becky Stateman

    Fan-Tas-Tic!! Being looking for something like this for a long time, results were more than I even expected.

  3. Rated 5 out of 5

    David Levy

    6 Months of reporting and I have to say it worked really great. Was part of a beta testing group that received the product for free when I purchased dry rocks from them 6 months ago. I had to report once a week on growth and of coralline algae in my tank and I was only allowed to add fish, no other rock or inverts. I’m super happy with the colors on my once dry rock. It doesn’t happen overnight but their product really works amazing. Great company too and we had quite a few laughs with my reports. Thanks again and glad I could be of help, I hope my experiences and feedback with your product has helped shape it into what it is now.

  4. Rated 5 out of 5

    Jose Corria

    Worked well for me. Searched everywhere for coralline algae for sale, is good stuff

Add a review

Your email address will not be published. Required fields are marked *

Tags: , , , , ,


Subscribe to the ARC Reef newsletter to receive updates on new arrivals, special offers and other discount information.