will produce several times more lumens than 400W of T-5 lighting and the PAR will be much higher as well.
MH uses far more electricity for wattage comsumed
I know this is nit picking (forgive me) but wattage is the elctricity consumed, which is just one reason why WPG
With the lighting choices available today, there really is no limit to what you keep in a shallow tank sans MH
, but if you go much deeper than 24" and you want to keep SPS
and clams...I would suggest you think MH
. Pinpoint source of light will always penetrate further in the water that something spread across the entire tank.
Also, with some creative shopping and a little DIY
...I do not think MH
is that much more expensive than any of the other choices.