Lights for LR

[cgr]

Do I need any specific lights to maintain and increase growth of coraline algea on my live rocks? I now have 2- 30 W 50/50 and 2- 30W 10,000K.
120 Gal
1 Yellow tang
1 Blue tang
1 Sailfin tang
3 chromis
1 cleaner wrass
1 tomato clown
1 sleeper gobie
Amonia 0, Nitrites 0, Nitrates 0, PH 8.2, Salinity 1.023

 

[legion]

If I'm correct you have 120 watts on your 120g. I have 130 on my 40 gallon breeder and my coralline is slower than I would like. I'm only in about a year but I believe as long as your levels(especially alk) it will grow just fine. But to tell you, the guys with more lighting get some serious growth.