They are pest. But if they are under control seems ok. I have a friend who told me it can help to reduce NO3.
He experience NO3 up after clearing his tank of the above mention pest.
High power led are usually those that is 3 watt and above per LED. And they run at minmum 0.5 A to 3 A.
High flux is the amount of light create base on the current run.(Lumen/watt)
High PAR is the amount of usable light for phootosynthesis
Does not matter what is your tank size but what is keeping and intending to keep
You forget to match your overflow water volume with your sump capacity.
Drill 1 or 2 holes on your return pipe at a position your sump is abou 90% capacity filled.
I do not think this strip LED is good for reef and marine tank.
You need a high power,high flux and high PAR LED for reefing.
So far creditable LED is Cree,SSC, Nicha, Philip and Osram
Just to name a few.