Light recommendations

[benny2554]

I know it depends on what types of corals I want to keep (at least I think I know), but I can't make a decision. Can someone tell me what is a great option for lights? I don't want to spend more than $400. I have a 75G, would like to get some T5's, probably 4x54, would like to place in a canopy.

I don't see a difference between these two:
<a href="http://www.reefgeek.com/lighting/T5_Fluorescent/IceCap/SLR_Retrofit_Kits/48_inch__4x54W_SLR_T5_Very_High-Output_Retrofit_Kit_w!_Bulbs_by_IceCap" target="_blank">SLR</a>
<a href="http://www.reefgeek.com/lighting/T5_Fluorescent/Sunlight_Supply/Tek_2_Retrofit_Kits/48_inch__4x54W_Tek_2_T5_Very_High-Output_Retrofit_Kit_w!_Bulbs_by_Sunlight_Supply" target="_blank">Tek 2</a>

I'd love to have some sort of dusk/dawn effect with them, but don't know if that would require getting two sets of 2x54 packages and thus two ballasts. Is it possible I could get one of the above units and then add another ballast later?

 

[WaterKeeper]

You can't because they are the same lights. They should provide plenty of light for that 75 and you can add a moonlight retro if you wish to gaze at them in the wee hours.

 

[benny2554]

They appeared to be the same to me too, but I needed some expert reassurance. Thanks for responding WaterKeeper, I will refer to the other 'newbie' threads and posted articles with regard to bulb combination(s).

 

[WaterKeeper]

I'd use three tubes in the 6000-8000K range and one actinic.