I can not seem to get these algae under control. What is it? A type of Cyanobacteria?
The tank is over two years old. One two clown fish and a cleaner shrimp.
I've tried weekly water changes 30-40%
The nitrates range 15-20
The phosphates are zero - BUT my powder is expired on my Hannah Checker, So??
I've added more clean up crew from reefcleaners that was recommended.
I've turned off the white light.
I only use RO water.
I need some more guidance please - Thank you
![IMG_2997.JPG IMG_2997.JPG](https://www.reef2reef.com/data/attachments/2700/2700828-18bb06e347f98a79f6f5899da5a908b5.jpg)
The tank is over two years old. One two clown fish and a cleaner shrimp.
I've tried weekly water changes 30-40%
The nitrates range 15-20
The phosphates are zero - BUT my powder is expired on my Hannah Checker, So??
I've added more clean up crew from reefcleaners that was recommended.
I've turned off the white light.
I only use RO water.
I need some more guidance please - Thank you
![IMG_2996.JPG IMG_2996.JPG](https://www.reef2reef.com/data/attachments/2700/2700827-f3f618317eb7d764f89f9b85e927e246.jpg)
![IMG_2997.JPG IMG_2997.JPG](https://www.reef2reef.com/data/attachments/2700/2700828-18bb06e347f98a79f6f5899da5a908b5.jpg)