Thanks for the feedback guys. More details of the LEDs, all driven by MW LDD drivers:
-19 Royal Blue / Neutral White Cree XTE 3-ups (2x RB, 1x NW per chip) - 9w @ 1000ma (light intensity: NW:130lm RB:575mW flux @ 350mA according to spec sheet)
-6 True Violets (405 peak) - 3w @ 700ma
-10 Hyper Violets (430 peak) - 3w @ 700ma
-11 Ocean Coral White (Red, Teal, Cyan) - 9w @ 500ma
Unfortunately I don't know the brands for the violets or OCWs, nor their efficiency.... but I do have the spectral charts.
I am assuming these are spectrum charts from the manufacturer of the fixture. Since there is no truth in advertising on spctrum charts I hold them with a grain of salt.
I do like the idea of the 430nm "violets" But every wave lenght specific LED I have seen is very narow wave lenght. The half strenght frequency is always 5 nm or less + and - of the peak frequency. Also the peak frequency is usualy + or - 1% or less of the advertised frequency which does not sound like much but when you look at the numbers like a 405 nm violet could peak anywhere between 401 and 409, or a 430 nm could peak between 425.7 and 434.3.
The use of light in wavelenghts under 420 nm is very debatable. Some claim they are not benificiial, and some even claim anything under 400 is even detremental. Yet other's claim they are important. I personly use them very sparngly on a 120 gallon tank I have 4 running at 2 Watts each, and on a 40 gallon I have 2 running at 2 Watts each.
Ifyour running all these LED's at full power you have 318 Watts of LED lighting. With even LED's prodiucing only 70lm per watt you have enough light for a tank between 150 gallons and 200 gallons dependent on the corals your keeping. With moire effecient LED's like the CREE's you have even more light.
Where I am concerned is the so called ocean Coral White that look like they are producing a lot of red light. Yes a little red goes a long way in enhancing the reflective reds in a tank. But several studies have shown that excessive red light is one main cause of the bleaching of some corals. Red light also stimulates the growth of CYno Bacteria and allows it to flourish in even water that is low in phosphates and nitrogen compoinds.
On the4 430 nm "violets" I love that idea to a limited extent and would love finding some of these chips. Any clues as where they come from?
And finaly the original question If you are going to add T-5's I would go with the ATI Blue Plus. However I want you to be cautious as your totlal amount of light is probably very strong to say the least. If you do not have dimming now you may want to consider it and the LDD Drivers can be dimmed using PW signal.
