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Re: FAQ on lighting is underdetermined

On Thu, 12 Aug 1999, Dan Drake wrote:

> [New to this list, if not to growing plants under water.  Hello,
> everybody.]
> The FAQ section on lighting gives a formula for computing reasonable
> light levels for a planted tank: multiply the surface area by the
> distance from the light source, multiply that by a fudge factor, and you
> get watt-hours per day. But it doesn't seem to tell what *units* you
> express the inputs in. Doing some orders of magnitude in my head, I think
> it that inches might work, but is this right?

It's a completely bogus document, and I (the editor) am the first to admit
this.  It's just a matter of finding time & interest to re-write it in an
appropriate manner.

> (BTW the section on suppliers still lists Dupla as if it were available
> through U.S. sources.)

This I will change.  Thanks.

  - Erik

Erik Olson
erik at thekrib dot com