refugium/green algae?

chuckstr

Member
I added a 10 gallon refugium under my tank next to the sump 3 days ago. Now I am getting a green algae just starting to appear on some of the rocks in my main tank. Is this a problem? If so what should I do?
My main tank has been up and running for 3 1/2 months. 75 gallon.
nitrates are about 20. They are usually between 10-20 and I can not get them any lower. I am doing a 20 gal. water change tomorrow and that will lower them to about 10 but they usually come back up. I was hoping that the refugium would help with the nitrates.
 

reefnut

Active Member
Do you have macro algae in the refuge? What is your phosphate levels?
Also... what is in the tank? How much do you feed and how often?
 
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