Best 400 w MH light bulb ?

[vio]

i need help, to now what 400 w (Brand) MH i need for Best color, i d'ont care about "fast grow" they may grow any way?! Thank You.

http://www.marinedepot.com/ps_searc...ategory=FILTBUMH&searchtext=400 watt&parsed=1

 

[cdamiano]

Radium

 

[JARRETT SHARK]

Radium

Plus 1

 

[jackson6745]

Radium is the only right answer here.

 

[vio]

OK. Thank You guys, i will order.

 

[PHILYD1]

Radium

 

[MIKE NY]

I never ran 400s, only 250s, but got to agree radiums on a M80 ballast...many ballasts will run them and more efficiently, but personally I think they look the best on these ballasts..

 

[Jaftica]

Radium 250's on m80's here!

 

[JPDUSSAN]

Sorry to bump into the thread, but a 72" coralife 3x150watt HQI mh would do reasonable coral growth with 3 14,000K Bulbs?

I recently switched from a full spectrum LED system....

Sent from my SAMSUNG-SGH-I317 using Reefs

 

[jackson6745]

Sorry to bump into the thread, but a 72" coralife 3x150watt HQI mh would do reasonable coral growth with 3 14,000K Bulbs?

I recently switched from a full spectrum LED system....

Sent from my SAMSUNG-SGH-I317 using Reefs

IME 150w bulbs are best suited for small tanks. Your corals will grow and have color but you will have all your SPS near the top. Water quality pays just as much of a role as lighting, if not more, to determine your growth and color.

 

[JPDUSSAN]

The fixture is currently sitting on a 125 Gallon RR tank... I think i mightove have made a big mistake in switching from LED to MH due to electric costs... And also the temp on the tank is much higher than before (79) of which i would have to run my chiller more constant in those warm afternoons...

Sent from my SAMSUNG-SGH-I317 using Reefs