Blue Vet Red Cyano RX
Red Cyano Rx will quickly and effectively treat disease-causing Cyano bacteria from live rock, live coral, and live sand in your saltwater aquarium without harming any of its inhabitants, including beneficial bacteria, when used as directed. Unlike other products, Red Cyano Rx will not discolor your water.
Reef Safe. Quick and Effective. Will not discolor water. May not be safe with sponges. Veterinarian Approved
How to use:
- Siphon out as much Cyano bacteria as possible from your aquarium.
- Remove a cup of water from your aquarium. Mix 1 level scoop of Red Cyano Rx in the cup for every 10 gallons (37.9 liters) of water.
- Dissolve thoroughly and pour the solution into the aquarium.
| Water Volume (gallons) | Amount of Red Cyano Rx (level scoops) |
|---|---|
| 10 gallons | 1 scoop |
| 20 gallons | 2 scoops |
| 30 gallons | 3 scoops |
FAQ
Can Red Cyano Rx be used in a reef aquarium?
Yes, Red Cyano Rx is reef safe and designed to treat Cyano bacteria without harming beneficial marine life.
Will the product change the color of the water?
No, Red Cyano Rx will not discolor the water.
Is it safe to use with live sand and coral?
Yes, it is safe for live rock, live coral, and live sand when used as directed. Avoid use with sponges.

Alan Davidson –
Used Red Cyano Rx after noticing a Cyano bloom in my reef tank. Followed the instructions carefully and saw improvement within 24 hours. Water stayed clear and no harm to corals or fish. Only caution is to avoid sponges, which I already removed.
Brian Hemmings –
Effective at eliminating Cyano bacteria without affecting the water color or coral health. Easy to mix and apply. Slightly disappointed it doesn’t work on sponge-based filter media, but that’s expected.
Hannah Marshall –
Great product for a quick Cyano treatment. No discoloration, no fish stress. Works well in a 55-gallon tank. I’ve used it twice now and it’s reliable.