T5 I should get??

[mark]

Hopefully someone will step in as I might be off for T5s but seems for the same wattage with MH, the higher the temperature less PAR is there for growth. This you need to balance this against that to get the corals to glow your looking at the higher temperature to actinic. Realize this isn't much help.

There's a huge T5 thread here that might be of help though.

Nice setup btw.