ZEOvit/200G Build Journal - 34G Solana

[GreenSpottedPuffer]

The new tank being lite with ONLY two 400 watt Metal Halides, and no actinic lighting, people on RC are suggesting 20K (which I was thinking anyways) and using either Radium or XM. Seems more people are saying XM but I think thats just because they are cheaper? I haven't seen Radiums here in town either.

Apparently though, the PFO ballast I am using overdrives bulbs and the Radiums are good because they are good at 430 watts. Which is why people use them with HQI ballasts I guess?

Also people are saying the XM's are certainly bluer. Apparently the Radiums are a more whitish blue while the XM's are a more deep blue.

Anyone have another opinion?

People have been telling me PAR and growth will be fine from either one but for some reason, it worries me. I guess the other upside to 20K is that less algae is likely to grow under them.