Wha?

[stgla]

The topic of the latest Joshi article really drew me in but I had a hard time following it. Is there an English translation somewhere? I just want some consumer information about color temperature and metal halide bulbs.

Also, the bulb reviews in Joshi columns seem to use 250 watt bulbs almost exclusively. If I use single ended 175 watt bulbs (PFO magnetic ballast), is there a resource I can use to identify the bulbs that would be visually appealing, efficient, and most healthful to the corals I'm keeping or planning to keep?