

🌊 Clear water, happy tank—effortless algae control for the savvy aquarist!
Blue Life Green Cyano Rx is a powerful granule treatment designed to eliminate green and blue algae from aquariums up to 400 gallons. It works rapidly within 2-3 days without harming fish, snails, or plants, offering a hassle-free solution that requires no manual scrubbing or water changes. Highly rated by users, it’s the perfect choice for maintaining a pristine aquatic environment with minimal effort.
| ASIN | B0018CFPNG |
| Best Sellers Rank | #45,105 in Pet Supplies ( See Top 100 in Pet Supplies ) #451 in Aquarium Water Treatments |
| Brand | Blue Life |
| Brand Name | Blue Life |
| Coverage | 641.6688 square feet |
| Customer Reviews | 4.6 out of 5 stars 153 Reviews |
| Included Components | Blue Life Green Cyano Rx |
| Item Form | Granules |
| Item Type Name | Blue Life Green Cyano Rx |
| Item Weight | 0.63 Ounces |
| Liquid Volume | 400 Gallons |
| Manufacturer | Blue Life USA |
| Mixing Ratio | 10:1 |
| Model Number | Blue Life Green Cyano Rx |
| Specific Uses For Product | Active |
| Target Species | Fish |
| UPC | 858542001234 |
| Unit Count | 1.0 Ounce |
| Warranty Description | Warranty |
G**E
Worked!
Got rid of all the green/blue gunk!! Fish were fine and so were snails. My plants stayed alive! Took maybe 2 days? Great product!!
L**Y
Worked way better than I thought
Works exactly as described. I did not think it would be this easy. Three days and it’s completely cleared up what I had spent hours trying to manually clean. I’ll be honest, I had pretty much given up and threw this in the tank without doing any extra maintenance because I was over it. It completely cleared it up without manual scrubbing or water changes. My betta, snails and many plants did just fine during treatment. I monitored the water conditions and nothing spiked.
A**R
It really works!!
It works! If you are see dark green carpet forming in your aquarium this is the one to use. Half of the spoon and the Cyanobacteria are gone. It’s not fungal so don’t count on product from Petco is cure it.
T**1
Very effective
My aquarium was being choked by blue-green slime. It was impossible to control by cleaning alone as it would grow back within a day. It was covering my plants and preventing them from getting any light. I treated my tank once using the directions on the package. It worked quite quickly and without harming my guppies or neocardia shrimp. Within one week my aquarium was looking much better. It took a good cleaning to remove the residual slime, but it didn't return. My aquarium is once again healthy, clear, and looking great. I highly recommend this treatment for blue-green algae.
J**L
does the job!
Knocked out the blue 'algae' with just one treatment in my planted 55g.. Works as described. No apparent side effects to plants or fish.
H**H
Works Fast
Worked quickly for me but my box did not come with a scoop so I was guessing at the measurements (later read the product questions and answers sections) and I am positive I overdosed my tanks to Davy Jone's Locker and back. I did rotate my fish between tanks as I was treating so I wouldn't accidentally kill them, but I am happy to say the green stringy bacteria is gone.
A**R
Works very well
Eliminated Cyanobacteria overgrowth with one dose!! I am pleasantly surprised that one treatment has removed all of the blue green slime. Immediately it is not obvious because plants were coated, but it didn’t reappear on the tank walls and slowly the coating faded and shed off of the plants. The tank looks great. Regular green algae does come back slowly, but not the Cyanobacteria. Tetras and Cory catfish are fine.
1**K
Does what it’s supposed to do
Worked great on the blue algae that was growing in my 29 gallon. Had to do 2 treatments to get it all, but it hasn’t come back since, and it’s been over 6 months now. Would recommend
Trustpilot
3 weeks ago
1 week ago