Metal Halide temp recomendations please

[dejaco]

Hi all, I have 2 metal halides over my 210 (and two VHO 160 watt Actinic R's)
Question - the one MH is a 10,000 K bulb and is actually pretty blue/violet in appearance.
The other bulb claimed to be a 20,000 K and is pretty yellow looking. I need to replace bulbs this summer and would like the effect to be what I see when snorkling.
Would making both MH's 10,000 K and running white Actinic in the 160 watt VHO
give a more natural look? Suggestions greatly appreciated.

 

[reefnut]

Typically the 20,000k bulbs are much bluer than the 10,000k bulb. 10,000k bulbs are typically a white/yellowish color.
What ballasts are you running and what bulbs do you currently run?