mh lighting

[Dustin Hale]

i have 400 watt 14k mh light should i have some power compact also.

[dwhit0102]

For what size tank

[javajaws]

I'm not sure I've ever seen anybody with a 400w MH supplement with power compacts...T5s or VHO maybe...but power compacts?

With 14k, most people don't supplement at all (myself included)...