Upgrading lights

[bskerrichard27]

So currently my tank is a mixed reef it's roughly five years old.My lights are a coral life dual 150 watt mh and dual 65. Watt PC light unit... I'm upgrading to the new g4 pro radions and finally got my apex .. can anyone offer advice on how low I need to start the intensity of the leds so I don't bleach my coral

 

[Sniperhank]

They were under MH before, you could probably start out at 50%. I don't have my Radions go above 60% anyway.

 

[bskerrichard27]

Yes 150 mh I also have two t5 as a supplement I forgot to mention that's on the tank also

 

[Sniperhank]

Most likely you'll be fine. The big difference from bulbed units, aside from the heat output, is that LEDs are much better at penetrating water than bulbs. This is where most of our issues come from when we switch from one to the other.
With that said, 150 MH and 2 T5 supplement bulbs is still a lot of light. It should be close to an equal switch and would simply be wanting the corals to be adjusting to the better water penetration.

 

[bskerrichard27]

How high above the water do you recommend

 

[Sniperhank]

Um, in reality I don't remember what Ecotech recommends. I would go by that. I used to know when I had them hung via wire, but I have their mounting bracket now.

 

[bskerrichard27]

The KS for the input