Anyone use aquarium water for orchids?

[cgrace]

WC water is supposed to be great for plants. I use mine in my houseplants. My friend soaks her phals in her water change water from her super dirty (but primo fancy) goldfish and she says they perk up considerably. I think of WC water as free orchid fertilizer.

That said, there are many variables to consider and not all water coming out for a water change will be the same. The loose concept and my lay-woman understanding makes think that hypothesizing that a lot of plants could benefit from it wouldn't be all that far off. </pseudo-armchair-science>