Cyano I Think

[Brian Treadwell]

Cyano I Think-image-jpgHey guys need some help , I have a couple of rocks that continuously get this red I think cyano with air bubbles , I manually remove it every week when I do WC are as much as I can vacuum off the rocks , it is not on my substrate just a few of the rocks , the Rock the birds nest is setting on is the worst , it only appears after T5's come on not there when LED's are on. I dose .09 ml of Vodaka and Vinegar daily , add Biodigest every two weeks , 15 ml daily two part.
parameters are as follows
No3 around 6
Po4 .04
Alk. 7.7
Ca. 430
Mg. 1480
Ph 8.3
temp. 79 to 80.5 during the day
SG 1.025
it vacuums off pretty easily and I can blow it off with turkey baster very easy , just can't seem to get rid of it. Thanks

 

[saltyfilmfolks]

Slow down on the carbon dosing. Ethanol will give you the cyano pretty quick. Vodka AND Vinegar is prob not good.

 

[Highgrade]

Slow down on the carbon dosing. Ethanol will give you the cyano pretty quick. Vodka AND Vinegar is prob not good.

+1 I had a cyano outbreak when I started dosing Red Sea No3No4-X in one of my nanos. I was trying to combat some GHA. I'd say a little goes a long way. GHA is gone but now I have Cyano. Stopped dosing theRed Sea No3No4-X and big ol water change and higher flow has seemed to cut back the cyano.