Glass MH enclosure suitable for reef tanks?

[robbyville]

Hi Chin,

I'm not speaking from experience so take this as a thought only...

It would seem like if the enclosures can handle a 1000w then they should be fine with 250's Depending on how you have them set up it might help to lower evaporation on the tank as well. I don't see how they would affect the heat in the room though since the heat would still be expelled into the area of the pendants (unless vented with a hose to another area).

My question is this; will these enclosures be further enclosed in a canopy or will they be suspended pendant style from the ceiling? If the latter then this is a similar set-up to most pendant style MH systems where the fans are enclosed in the fixture.

The one cautionary note that I would make is that if within a canopy, the idea is not so much to cool the bulbs but to cool the air below them and onto the water as well. This does make for more evaporation but for me at least has really helped to keep the tank cool during the hot summer. FYI my fans are located just below center on my canopy side panels.

HTH,

Rob