MH setup

[Jimsreef]

Is this reflector and ballast a good choice for my 120. Was thinking of putting 20k radiums in them. Jim
http://www.hellolights.com/index.asp?PageAction=VIEWPROD&ProdID=1325

[Kaos]

I think that would be a great choice. How long is the tank and how many are you looking to get?

[Jimsreef]

Tank is a 120 4 foot long I would need two of these I have vho was needing to get a good 10k bulb for them

[Kaos]

Going off Sanjay's site, the Aqua Arc produces the most PPFD (72) followed by the AB (64). Also, the Aqua Arc will be kinda yellow and the AB will be more blue (for 10K's anyways). This is also according to Sanjay's sight.

I think if you get the AB's and couple them w/ some Super Actinic R you will have a nice setup. But I like my tank more blueish.