Up grading to 250w metal Halide

[1229goad]

I have 4 65w Pc lights now, and just got a new 250w metal halide. Do i need to do anything speical or can i just change my lights?

 

[returnofsid]

That's a HUGE difference in light intensity. You'll have to acclimate your corals to the new light, over a period of time.

 

[jezzeaepi]

I would defintly recomend the screen method for acclimation. Get 4 layers of screen, put them between the light and the tank, and remove one layer of screen every 3 days.