I am interested in watching the algea develop. Salt water introduces algea as hitch hikers on live rock.
So your probable going to be limited with green slime algea, and single cell stuff. Which might take some time to develop.
My tank has 3 different types of long strand turf algea, and several simple thin film types.
If you find it not growing very well. I will be happy to send you some seed algea.
My 15 led upflow, scrubber provides all bio filtration, for 15 malwai cichlids and keeps ammonia from ever turning into nitrate.
Keep us posted, thanks