T5 Height

[Daniel62]

I have a 8 bulb 54 watt fixture. Frag tank is 10 tall. how high would you hang the light over the tank strictly SPS. Thanks

 

[scrapz]

Would start them at 10"-12" above at 5 hrs. Lower them daily until you hit 6-8" above the water and add 15-30 mins daily until you hit your desired photo-period. If you experience lightening during this period, raise the fixture vs reducing photoperiod.

 

[Myka]

For me, I relate the height of the fixture to the width of the tank. If the fixture is 18" wide and the tank is 30" wide I hang it higher - like 12" so there is better spread across the width. If the fixture is 18" wide and the tank is 18" wide I hang it lower - like 3" to take advantage of every bit of output I can.

 

[Reel North]

Mines over a 12" deep frag tank. I have it around 12-14" off the water.