Possible red algae?

[mayb keeper]

Is it possible I am getting red algae growth? My 75g with 110 lbs NOT live rock and 4+inch sand bed has only been cycling for a week. All parameters are normal considering cycle.
sg 1.025
78 deg f
ph 8.3
alk 4
amm 1.0
nitrite 1.0
nitrate near 0
I am getting a reddish color growth on my rock(again, not live). It is growing mainly under areas of better lighting (150 watt mh at 14k) and I cannot remove it with a directed powerhead. I also have ~15gal/hr turnover in my tank.
For these reasons, I guess I suspect its red algae and not diatoms. Any thoughts?
And if it is red algae, is there anything I need to worry about or do? Thx

 

[knoll]

could it be red slime? does it look glossy and sorta stringy/stretchy?

 

[mayb keeper]

Its still very small, so it may get glossy and/or stringy. But for now, its more splotchy; as if I dusted the rock with a powder that ranges in color from cinnamon to paprika.

 

[knoll]

hmmm not sure then it might be red algae if your lights can give it what it needs to live gl though

 

[michaeltx]

did you put anything "LIVE" in the tank? and when you say Not "LIVE" was it dry base rock or wet base rock.
Mike