- Joined
- Dec 31, 2015
- Messages
- 531
- Reaction score
- 172
I could use some help trying to figure out what kind of algae this is. Tank is just under 1 year old and is a reefer 425 (~90 gal display). My nutrients are 0 nitrate and 0.01 phos. I’m running a refugium, rollermat, 25 watt pentair UV with 470 gph (apex flow meter). I have 11 fish including a Foxface, bristletooth tang, yellow tang and feed 2 cubes per day.
I initially thought it was just hair algae but my urchins and tangs won’t touch it. It also doesn’t pull off rock easier. I was concerned it might be dinos due to low nutrients but it doesn’t change at night with lights off and it’s hard to scrape off rock.
I was finally able to get some decent photos of it and the video below.
Please help as I’m not sure if I should try to raise or lower nutrients or whatever else is needed
I initially thought it was just hair algae but my urchins and tangs won’t touch it. It also doesn’t pull off rock easier. I was concerned it might be dinos due to low nutrients but it doesn’t change at night with lights off and it’s hard to scrape off rock.
I was finally able to get some decent photos of it and the video below.
Please help as I’m not sure if I should try to raise or lower nutrients or whatever else is needed