The Planted Tank Forum - View Single Post - Lighting an Aquarium with PAR instead of Watts
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post #13 of (permalink) Old 07-22-2012, 03:55 PM Thread Starter
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Location: Sacramento, CA
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Originally Posted by Steve001 View Post

Aesthetics (CRI) is another matter for a separate discussion.
CRI remains a bit mysterious to me. Recently I read that incandescent light gives a CRI of 100 - perfect. That was because the color rendering index is designed so that perfect color rendering is that of incandescent light. I doubt that anyone reading this wants an aquarium to look like it has incandescent bulbs lighting it.

My first tank, back in the 1950's had an incandescent light, which I quickly replaced with a DIY T12 fluorescent light. I was amazed by how much better it looked with the fluorescent light, even though T12 bulbs, all that were available then, were notorious for making people look like ghouls.

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