The ultra tall canopies seem to be all the rage on lots of commerical
tanks in doctors offices and such in this part of the woods. There is
a church here with a 210 gal with MH and its canopy has to be at
least 3 feet high. Even the lfs that specializes in SW stocks a few
extra tall hoods as well. He does not stock stands made by the various
aquarium manufactuers, but instead has a local retired fellow make
them for him.....Somewhat cheaper and better made and custom odds and
ends is always an open option. Turns out this old retired fella was
the owner of a large cabinet business here, who has retired and turned
it over to his sons to run, but he plays in the cabinet shop making
stands and hoods as needed.......

IIRC the majority of thr tall hoods have most of the top open to the
atmosphere, as well as 6" diam mufin fans installed. About the only
place there is wood that covers anything is if florescent lights are
added in....

On Fri, 09 Feb 2007 14:13:01 -0500, Add Homonym
wrote:

George Patterson wrote:

Absolute bull. I've never seen metal halides put inside a canopy. They
generate way too much heat for that. Usually they are suspended about a
foot above the tank.

I have seen plenty of metal halides supended about a foot above the
tank, yet still inside the canopy. I'm guessing you just haven't seen to
many canopies that are made for this sort of thing? (ie: canopies that
are 2-3 feet high)



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I forgot more about ponds and koi than I'll ever know!