[gravy9]

I've been researching the same thing for the past 2 months for my 38 gal tank. Of all the articles that I've read so far, here is the summary of my understanding:

1. Metal Halide
   • Features: Extremely bright
   • CONs: Generates a lot of heat, Very expensive
2. T5HO
   • Features: Very Bright (less than Metal Halide), Great Price/Performance ratio, Does not generate much heat
   • CONs: Not very compact
3. Power Compact
   • Features: Not as bright as T5HO, Compact sizes
   • CONs: Generates more heat

Based on my research, I'm leaning towards buying a T5HO fixture for my tank. Either the Hagen GLO or the Nova Extreme Freshwater.

Also, curious to see if other have any different opinions or findings.

regards,
Ravi