Coralline Algae in a Bottle + Nitrifying Bacteria for Saltwater Aquariums, Pink Fusion Strain

I’m pretty sure my results aren’t the norm, but I have many growing spots after only 4 weeks. Many spots!I added this bottle as soon as I was past the initial cycle of the tank. My diatom bloom isn’t even over and I noticed that some spots weren’t rubbing off the glass… As I gave the spots a closer look, there were a lot of them all over the glass. Sure enough, they’re the good stuff… and they’re growing. I’ll be breaking out the razor blade to remove them from the front glass very soon.I will note this: I have kept my parameters very constant and stable since day one, via water changes. Alk @ 8 dkh, Ca @ 350, Mag @ 1050, pH @ 8.2, salinity @ 1.024. I don’t keep my parameters on point for the coralline, but rather it’s just an easy and good practice. Super easy with just weekly 10% water changes for a new tank. But like the instructions say…. You gotta have stability for coralline to thrive, just like with corals.I’d almost be willing to bet that all of the negative reviews are due to the owner not keeping healthy and stable parameters. It’s not a miracle bottle after all, just the spores you need from multiple strains. Treat it right, it’ll grow.PS. No other form of coralline has been introduced to my tank. I used completely dry rock, all new equipment, and I haven’t even introduced a cleaning crew yet, so no snails or hermits bringing it in. I’m pretty sure it didn’t hitchhike in on the pair of clownfish! 😂This is the whole reason I purchased it to start with… because it was going to be the only way to introduce it for a while, plus I wanted pink!

I purchased this along with the purple heliax three months ago and I now have coralline algae growing all over my aquarium. My tank is about two years old and I've tried everything out there. Nothing worked until I got this stuff. Make sure all your water parameters are what is recommended in the instructions and follow them when adding to your tank. Be patient, it will grow. When I eventually get another reef tank this will be the first additive I buy.

I have purchased 3 bottles of this over the past 2 years both pink and purple. The first two I purchased i never saw any results. The third bottle I purchased I saw results within 6 weeks of adding to my tank. It started on the bottom of tank (bare bottom) and the plastic of a submersible pump. It literally grows like mushrooms, one day nothing, the next there’s 15 spots of it out of nowhere. I’d like to add I have never had luck growing coralline with led lights, specifically the AI prime HD. When I had t5s coralline was a literal nuisance but when I got a different tank and switched to the LEDs never had any. So of course when you don’t have something now you want it. I decided I was going to move my tank right in front of a floor to ceiling Southwest exposed window and downgrade to cheap led lights and let the sun do most of the work. Now this location is perfect because a tree outside in summer provides dappled shade so the tank won’t overheat put provides extremely bright light in winter when the sun is lower and weaker. This is a Euphyllia only tank (and a few zoas and green star polyps that I thought I removed but guess not good enough)🤣. Amazing growth and I finally have my coralline back although I may soon regret that when I’m scraping it off the glass every week. So I’m only giving it 4 stars because how do I really know the coralline came from this bottle? I really don’t. I have a snail that has it on it and he has been in the tank since set up in its new location 5 months ago. That being said I did add this 6 weeks ago and the coralline showed up within the time frame specified on the bottle. I personally do believe it was the bottle but have no way of proving it. I’d also like to add my tank was going for near 4 months before I added the bottle, my dry rock has been in constant use for over 3 years with corals already on it. Also had low nitrate levels (<5) and the proper Mg,alk, and calcium levels needed to grow coralline. I don’t think it’s wise to add the bottle to a newly set up tank where parameters are fluctuating and the tank hasn’t gone through all it’s ugly algae and cyanobacteria stages, probably just be wasting your money.

Coming back to review this item after about 6-7 weeks from purchase date. The coralline is finally starting to take off in my tank and I couldn’t be happier!

Not sure if this stuff works or not. First application was in August 2024 and have used it two times since. Still no corraline. Could be my tank and needing to have ph and Alk more stable but I have not had huge swings. Going to have my lfs scrape some into a jar for me and try that route instead.

This product did literally nothing. Ph was stable at 8.3, specific gravity at 1.025. I saw other reviews when people talked about being able to see bits of coralline in the bottle, but this was definitely not the case here. I was skeptical after dumping what looked to be perfectly clear water into the tank (nice trick with the pink bottle), and after 3 months have absolutely zero coralline growth. Don't waste your time or money: buy some nice live rock instead.

So i did everything to the recommendation, but guys seriously give them a break man, your tanks parameters need to be a certain level of many things in the water, Coralline algae is very rare and hard to obtain, its live spores not magic in a bottle, the product delivered, and it didn’t work because MY tank is NOT at the required levels to support the growth of coralline algae its a good product if you want to buy it make sure your stuff is right before you order and then blame them for your lack of environmental readiness, 10/10 GREAT PRODUCT!

The media could not be loaded. I initially saw small spots of coraline after 4-5 months, but after the 10th or 11th month it started taking off out of no where and has started growing fast and on everything. I don’t know if it’s due specifically to this product but everything happened according to the instructions. Would buy again for a new system.