Blue, royal blue or ultramarine

[ChrisQ0904]

I am don't with building my tank and it is cycled and now need to figure out the last part of the lighting. Tank is a 187g 60x30x24tall and I have 2x250w MH and 4x54w T5 I want to add some LEDs to give the corals some pop. I looked up LEDs to do it myself and noticed there are different blues and don't know which is best or may be a mix is better? Also if I'm going mainly for aesthetics on a SPS dominant tank, roughly how many LEDs should I get and which degree lens?

 

[Diesel]

You be better of to work with your T5 bulb combo to get that extra pop.
If you go SPS after a year that your tank is matured all the way through you can upgrade your MH to 400's.
Giesemann has a super actinic bulb that would give you that pop.

 

[alanjeffery]

I don't think you get a pop with T5 anything like you do with LEDs, as for OPs question go for a mix of RB and Ultramarine 3:1

 

[Diesel]

IMO plenty of pop!
Besides if the OP would like this to be a SPS tank he would be wise to mix in for at least 6 hrs a daylight bulb like a tropic from Giesemann

 

[jda]

Using a true actinic T5 bulb for long enough for the coral to grow/develop the intense color will pop more than LEDs will. These will actually create the color in the coral as well as show it off, so they do take a few months to get going.

If you are going to go with LEDs, use the ones that are in the Reefbrite XHO.

 

[Steven Garland]

I used Ultramarine blues,and if not mixed with a 1:2 of umb to rb's it get windex looking REAL quick.

Just to get some "pop" you won't need many leds,I mean you'll still need quite a few though regardless.