Mon-Thurs 7am-5pm PST
Fri 7am-4pm PST

Questions about products, orders, shipping?
Contact us by call or email

Blue Life USA Red Cyano Rx


Item #: BL2151

In Stock

Red Cyano Rx:

Red Cyano Rx will quickly and effectively treat Cyano Bacteria in your aquarium without harming any of its inhabitants when used as directed. Unlike some other products, Red Cyano Rx will not discolor your aquarium’s water. Red Cyano Rx is safe for all types of Saltwater Aquariums and will not harm any of your fish, corals or other reef invertebrates when used as directed. This package will treat 400 gallons (1514 liters).

For best results, siphon out as much Cyano Bacteria as possible from your aquarium. Remove 1 cup of water from your aquarium and mix with 1 level scoop of Red Cyano Rx for every 10 gallons (37.9 liters) of true water volume in your aquarium. Dissolve thoroughly and pour solution into the aquarium. You will need to discontinue the use of carbon, protein skimming, and ozone during the treatment period. Do not dose in the evenings when lighting is turned off. After desired results are visible perform a 25% water change and resume the use of carbon, protein skimming, and ozone. If Cyano Bacteria is still visible, perform a 25% water change and repeat dosage.

The best time to start treatment is in the morning when lighting first comes on. Also, it is important to perform a 25% water change after every dose. Warning: This product is for aquarium use only, not for human consumption. Keep out of reach of children. If overdosed, this product could have some effect on aquarium pH and Oxygen levels.

Bundle & Save with the Blue Life USA Red Slime Rx & Phosphate Rx Combo Pack!

Manufacturer information

Blue Life USA Aquarium Supplies
Blue Life USA is committed to providing the highest quality aquarium products available. Their staff has a combined 100 years of experience as hobbyists, retailers, industry professionals, chemists and veterinarians. Blue Life USA’s vision is to enhance the enjoyment of aquarium hobbyists by offering the next generation of products that will help create and maintain thriving, vibrant and crystal clear aquariums. With an unyielding dedication to integrity and responsibility, Blue Life USA raises the bar for this generation and future generations of aquarium product manufacturers.

4 Stars


Reviewed on
April 14, 2019

Yes, I would recommend this.

Removed a lot!

My tank was covered, this removed it all!

Was this review helpful? 0 0


Reviewed on
October 22, 2017

Yes, I would recommend this.

Works wonders

Pros: Completely got rid of algae with 3 doses over the course of 72 hours.

Cons: I included a bubbler in the tank to ensure the oxygen levels stayed elevated, and removed it after done dosing. I had heard that it can reduce Oxygen levels, but with the bubbler I noticed no effects whatsoever.

I bought this two days ago, and added it on the first day I received it. 24 hours after adding it didn't seem like much was happening, however the water had many little particle in it, presumably from the dead algae. After another dose, almost all of the algae is gone, and is not growing back. I will do one more dose just to be sure. Fish (percale clown, pygmy angel, six-line wrasse) are completely fine and didn't even seem to notice it was there. All inverts survived (two teeny hermits, two snails, one cleaner shrimp) without effects as well. Corals all survived, but I don't have any SPS in my tank. Love the product! The tankless 300 times better already.

Was this review helpful? 2 0

michael shane

Reviewed on
June 21, 2015

Yes, I would recommend this.

Got what I paid for.

This product worked as advertised. In one treatment the red slime disappeared and the water seemed to be crystal clear after about three days. I'm a believer!

Was this review helpful? 0 0

richard oconnor

Reviewed on
June 19, 2015

Yes, I would recommend this.

Red Slime

MAN, this stuff is the HOT ticket !!! Did one application, followed directions. It took all the red slime that covered everything out and hasn't come back. Great Stuff.

Was this review helpful? 0 3

michelle mcelhaney

Reviewed on
February 08, 2013

Yes, I would recommend this.

Double Dose

It took 2 doses to get the desired results but I am once again HAPPY with my salt water tank...It is BEAUTIFUL!!!

Was this review helpful? 2 0

shane jackson

Reviewed on
July 20, 2011

Yes, I would recommend this.


Red slime RX works better than I could of imagined. I have a 14 gal nano reef tank and the red slime RX got rid of the cyano that was starting to overrun my tank in two days. It did everything that it said it would do without hurting my inverts, kenya trees, palyps, zoas, and rbta.. Oh yeah the fish are fine too..Wonderful product.

Was this review helpful? 2 0


Reviewed on
November 29, 2010

Yes, I would recommend this.

Blue Life Cyano

Great product. Had a complete invasion of red slime in my 250 gal reef aquarium. Could't stand to look at it. I applied the product at 75% of the reccommended dose in the morning and after 36 hours no red slime anymore, crystal clear water and zero problems with corals, invertrebates and fishes. Perfomed only a 10% water change after the treatment. ( No Skimmer for 5 days )

Was this review helpful? 5 0

marc russell

Reviewed on
April 15, 2010

Yes, I would recommend this.

Works Great!

You can follow the instructions all you want for any product out there but if you do not get rid of the problem actually causing your red slime outbreak IT WILL COME BACK!! This stuff works exactly like it is supposed to. First, get rid of what you think is causing the problem, then use this and your red slime will not come back. I got lazy on maintenance once and had to use this. IT WORKS! I have over 50 LPS, a few SPS, anemones, tons of shrimp, crabs, urchins...nothing was lost (or even noticed the product was in there as far as I could tell).

Was this review helpful? 4 0

janet shaw

Reviewed on
September 15, 2009

No, I would not recommend this.

Blue Life Red Slime Control

I was very disappointed. I followed the instructions precisely. The red slime disappeared for a few days, but came back, even after a second treatment.

Was this review helpful? 4 0


Reviewed on
July 29, 2009

No, I would not recommend this.

Red Slime Control

I used this product according to the directions and it killed my very large SPS I've had for 5 years. It kills the red slime but it is very misleading about affecting coral with no harm. No one should use this product with SPS coral!!! I had to do many many water changes to get the tank right again. LPS and Soft coral recovered but looked terrible for a week. Fish were OK.

Was this review helpful? 0 1

We use cookies to provide a personalized site experience. By continuing to use & browse this site, you agree to our Privacy Policy.