[cale262]

Originally Posted by nanomano

So how do you really measure the light then if par is irrelevant? I am just wondering cause I am getting an AI for my new tank, and going from t5's to AI will be a huge change, I know I have to start it low, but how low is low lol? might seem like a dumb question

I think it's really a case by case basis and there is no easy answer unless you have a Spectrograph. Start with considering what you currently house in your glass box atm, either way, popular consensus say to ease your system into the new lighting, watch your corals for undesired changes while increasing the intensity of the LED fixture.

The next big question comes when adding new coral to the system, this is why I’m going to use the same lighting on my frag tank as the DT, this way I can ramp the intensity up and match the photo period while acclimatizing the coral/frag to match my DT.