Coralline algae is a fantastic red alga for any type of saltwater tank. It is especially popular in reef tanks and plays a variety of different roles in each environment. First, Corallines are a great option to turn bare rock colorful and lively. They also provide protection to the rock and an excellent surface for corals and other marine life to establish themselves on. Corallines help fuse your reef together and a heavy presence of this algae typically signifies a well-established, healthy, and nicely aged aquarium. In the ocean they play a vital role in protecting the reef and at the same time, acting as the great connector or glue of the reef. Corallines separate themselves from other algae in multiple ways. The main identifier of this algae is the calcareous deposits between their cell walls which give them a rigid formation easily mistaken for a type of stony coral rather than red algae.
AlgaeBarn distributes Atlantic Reef Conservation’s Coralline Algae in a Bottle. AlgaeBarn is a huge fan of Atlantic Reef Conservation and their coralline algae products. Atlantic Reef Conservation’s product comes in two different lines: Purple Helix and Pink Fusion. These bottles contain live coralline algae spores and active nitrifying bacteria that are both beneficial allies for your aquarium. As the coralline spores fixate and develop on the surfaces of an aquarium, you will see beautiful pink and purple “spots” expanding outward and encrusting their surroundings. Over time, this algae will spread to most parts of the aquarium and even help protect against other nuisance algae. 
Not only does Atlantic Reef Conservation produce a great product but they also donate 20% of their proceeds to repairing coral reefs. Outside of their products, Atlantic Reef Conservation is dedicated to the conservation and development of coral reefs and AlgaeBarn is honored to partner with such a unique and wonderful company.
Zach Hankins says
Just getting ready to start a cycle on a reef tank with dry Marco rock. Do I need to wait any amount of time to add this product or can it be added at beginning of the cycle?
Thanks
Zach
greg.chernoff says
You want to wait until you are completely cycled and stable before using this product, also ensure your cal / alk / mag balance is great and it will take off!
sourdog22 says
I love the look of coralline algae.
Raven Scholtz says
Me too! Do you prefer pink or purple? 🙂
Kathleen Ryan says
It’s so cool to see this growing in my tank
ernie.alvarez0325 says
Coralline algae gives the tank a beautiful color. MKe sure and check your mag, alk, and calcium levels
Scott says
I can’t wait until my tank has cycled and stable so I can use this! Plus, I think it’s awesome that some of the proceeds go to a great cause.
bullmoose1977 says
I’ve used this product before and had excellent results!
Daniel Olguin says
I love the look of coralline algae.
Mark's fish tank says
I need to get me a bottle
billandambermags says
I used thus in my current system and in took a little time e but is now exploding with both purple and pink coralline as I used both.
perru380 says
I need some coraline algea
Dallas says
I have always wondered whether this product works. I may have to try it!
David J Todorov says
I did notice that this accelerates the development of coralline algea. I used it in my display.
markwdunlap88 says
My tank is about 3 months old, is it too new to start adding this?
mybuddykosar says
Used it on two tanks and would use it again
jhoffman says
It’s so cool to see this growing in my tank!
Steven says
I need to get some purple in my tank
crplcarott says
Thinking about trying this.
Griffin A says
hope the quality control is better this time but is a great product otherwise
Raven Scholtz says
Hi there Griffin! If you haven’t already spoke to someone about this, please email [email protected] and I would be happy to help!
jwowen41 says
Added this to my tank
tbrown3589 says
I’m curious if there’s any difference between the pink and purple as far as cal/mag/alk export?
Rick Barnhart says
This stuff worked for me I’ve used it twice
joshuastevens930 says
Never tried this cause everyone tells me if my tank is established it won’t work but then again I can’t grow coralline anyways
sahnwts says
Love coralline
Andrea says
I think I may have to get these! I’ve always heard great things about coraline algae and was hoping to have it in my tank… guess now I can!
grammy6851 says
Already got too much
sclarke_o says
Starting to see a few patches appear here n there
paulmatthewguilliam says
Very cool product
Tian Sorg says
I love to see the corraline growing in my tank!
Matt Armstrong says
Would like to try some of this
dengwilliam96 says
great information on coralline algae, I have it growing on my backwall.
vanlierew says
Need to get some pink I have purple already
tcobosco says
Product works great if instructions are followed it doesn’t happen over night but does work
robert.lowell says
I have the coralline in a bottle. Haven’t used it on the new setup yet, but looking forward of results
fedexman47 says
This is pretty cool
fedexman47 says
Awesome stuff
chad.boehler says
I’ll have to pick some up on my next order 🙂
matthew.k.wyatt says
this stuff is awesome!
Alexandra Gulledge says
I used the pink bottle on my new tank. It’s coming in slowly but it is growing.
michaelruxton says
This Coralline is great for seeding a new tank. Make sure you can support it though. It will deplete your parameters.
Christopher Hooks says
I ordered one of these a while back and it was worth it. It is finally taking off
Robert Land Kligerman says
My tank is about 6-8 months old. It’s a 50 gallon mixed Reef (with 20 gallon sump/fuge underneath) and all my LPS/SPS/soft corals and Gorgonians, along with my macroalgae in my fuge, are all super healthy, vibrant and growing like crazy. I used dry rock on this build, and have used the ARC Coraline products, both purple and pink, on 2 separate occasions but have yet to see a spec of purple or pink… there’s a lot of greens, yellows, etc growing on it, but again, zero purple or any variation. My parameters are perfect, calcium 480, alkalinity 8.7, salinity 1.025, phosphates .04, ammonia 0, nitrites 0, and nitrates <5. I’ve got about 200 watt LED lighting tuned in at 35% white, 81% blue, 86% UV/violet, 81% purple, 15% green, 12% warm white. All my snails have thick purple Coraline growing on their shells. I’ve also crushed up Coraline algae and spread it throughout the tank, but still I see absolutely nothing on the rocks or glass or any of the equipment. Can you give me any advice on why this is? Back in the day when I would use live rock it was never an issue, but this is my first time using dry rock and I’m wondering if there’s anything else I can do? Please help!! Thanks a lot
David Sorensen says
Purchased both the pink and purple pack. Added into new tank once cycling was completed. Already have coralline spots showing up after 30 days. Just make sure to follow the directions for the parameters listed on the instructions.
Raven Scholtz says
Adding coralline from ARC reef will not effect your water parameters as it is coralline algae spores and nitrifying bacteria!
trizzi says
Still waiting for mine to grow
Raven Scholtz says
Have you had any swings in water parameters, temperature, or salinity? What are your water parameters currently? 🙂
Patrick Pokrop says
So much better than a naked rockscape
Chris Poynter says
It’s great until it starts growing on you glass
Chris Poynter says
It’s great until it starts growing on you glass
James Bradshaw says
Colorful covered rocks look so good I purchased some! Can’t wait for it to take hold
gerrynator4 says
Coralline looks amazing and this product did yield some for me
Rob says
I would try some…
Christopher Johnson says
Woo hoo go algae barn!
Kelly Davis says
I tried both bottles in two different tanks. I didn’t really notice a difference. Just figured it was worth a shot…🤷🏻♀️
Kelly Davis says
Didn’t seem to work.
KiltedReefer says
Tried once. Unfortunately I got to impatient and tank wasn’t quite ready. I hope to give it another go soon now that it has settled.
scott says
Starting Now
nate says
great place to start before growing stony corals
David Bommarito says
cool
Joel says
Love me some Coralline
eric says
Why not just go natural way
Botzz28 says
I started with live rock. Can i add this to the tank to enhance growth of the existing coralline ?
jackbauer24.1 says
Coraline rules
Pete Tellers says
The coralline in my tank looks like a map of the world on the back wall.
Paul says
I need to look into coralline algae for my nano!
Edward Yew says
I have never used this, but I am willing to try
blindfish21melon says
One of my favorite things to see in a new reef tank
zdunbar8515 says
Thinking about trying this!
Andrew says
Thinking about trying this as well!
chriscatherman says
Tried it years ago & it seemed to help! Might get some for my new tank!
Marijane Stevens says
I need to try this!
Ethan says
Heard great things about this stuff! Cant wait to get some
Andrew Hahnenberg says
I love the look of coralline growth.
Tim T says
I want to buy this
Mason says
Nice
Christian Mandilawi says
Should I get it