Radium 20k's to borrow

[StirCrazy]

Originally Posted by BlkWolfe

Hey Steve

I have pfo HQI ballasts. quite a few people have posted, not this forum, that overdriven radiums turn alot whiter, almost a 12k or 13k. I wanted a little more blue, bring out more color in my corals, just dont want to take a dive with par, but i might not have a choice.

ah well, time for VHO actinics

when I was running the 250 radium in my tank on HQI I had to shut off the VHO it was so blue.. and I have a 400 radium running on a normal ballast in my garage right now and it isn't 1/2 as blue as the 250 one was.. but I imagin as for eveything else each bulb will vary a bit.

Steve

[BlkWolfe]

Thanks for the input steve

[BMW Rider]

Did you get these bulbs to try out? I'm looking at them to replace my XM 10K bulbs. I'm also considering the XM 15K and 20K bulbs. I'm using Icecap ballasts,so I can run any one of these bulbs. I am finding my 10Ks to be too white and my corals all tend to fade out to browns even with 2x96w actinic PCs. I want more blue, but I don't want to go extreme with it.

[BlkWolfe]

I ended up ordering new XMs. Thinking about getting a couple radiums while J&L's sale is on though. If i remember to get them ill post pics