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View Full Version : My MHs hang awful close to the water

Deweys Dad
06/14/2006, 05:20 PM
How close is too close? I don't have them installed yet, but the dual 175 MHs that I just got in the mail are going to hang within two to three inches from the water surface due to my low profile canopy. I imagine this is going to cause problems with my water temp if nothing else. I was going to install a couple fans while I had the canopy off, but is this too close? Should I find a different style mount that doesn't hang so low, if there is such a thing?

I plan on using some eggcrate so I'm not really worried about splashing the bulbs, just water temp and possible corrosion of the fixtures. Am I overlooking anything?
asmujica
06/14/2006, 05:24 PM
I think they are too low. Look at my gallery to see how I mounted my lights in my canopy.
Deweys Dad
06/14/2006, 05:29 PM
Not a bad idea but I have a retro kit and cutting up my canopy is not an option.
asmujica
06/14/2006, 05:32 PM
Thats a tough one, sounds like you may have to raise the canopy a lot. If water hits the bulbs they may break/explode on you.
rsxs1212
06/14/2006, 05:42 PM
thats a sweet idea with the cutting of the canopy, looks clean still yet the bulb part doesnt shine around the surrounding area of the room. very nice
asmujica
06/14/2006, 07:26 PM
<a href=showthread.php?s=&postid=7561825#post7561825 target=_blank>Originally posted</a> by rsxs1212
thats a sweet idea with the cutting of the canopy, looks clean still yet the bulb part doesnt shine around the surrounding area of the room. very nice

Thanks, it also helps distribute heat better since the outside of the ballast is getting cold air from the outside and not trapping it inside the hood.
ROB2005
06/15/2006, 08:03 AM
not only will it cause temperature problems but if a good deal of water splashes on those bulbs they will instantly shatter....so take precaution
Toddrtrex
06/15/2006, 09:07 AM
As you can see by the picture my 2*175s are really close to the
water, with the use of the clip on fan, I have no issues with heat.
There is an acrylic sheet between the lights and the water so splashing isn't an issue. But I wouldn't count on egg crate to stop
the splashing.

http://reefcentral.com/gallery/data/500/5061358_gallon.jpg
rsxs1212
06/15/2006, 09:24 AM
yeah egg crate will just bring the intensity down it wont bring down splashing much