think i am going to purchase these 50/50 lights. In order to promote the growth of coralline algae
Not necessary
I have a junky 33 watt NO that i bought from walmart (a bright stick) and two 15 watt actinics, it works just fine. I also use a little daylight, coralline will grow fine in any lighting condition, i would just make sure you have good calcium levels.
Oh and redslime usually is from too much food and wrong spectrum of light, i heard that sunlight can cause this, but for 3 weeks i use sunlight and no red slime yet.