Re: Lighting, MH vs. Florescent

One fact that many people are neglecting is the additional cost it tacks to 
cool down ones house with the addition of lights.  Donw here in Texas (with 
our marvelous warm winter weather) we usually have to start running the air 
conditioning about April 1 to November-December.  The additional heat output 
from MH lighting would cause me to run my air conditioning even more.  So 
this would be a MAJOR consideration in my thinking about using this type of 
lighting!  Flourescents are remarkable cool in comparison, even when I am 
running many of them.  

I used to have a 125 gallon reef tank and we were running 6  6' VHO bulbs.  
I was able to remotely locate the ballast out in the garage and run the 
wiring from the ballast through the ceiling (routed through a piece of grey 
PVC conduit).  I could imagine that this would be possible with MH ballasts 
also, but I have found that the bulbs themselves crank out tons of heat!!  
In areas of the world where you would have to run heaters on your tanks year 
round this isn't a problem...but I down even want to consider the option of 
running a chiller on my tanks or tunning the airconditioning at 75 F. ...i 
am not made of money!!!

My $1.98 worth of thought (the rates have gone up!!)

    John Davis (marooned in aggieland)
    Department of Biology
    jdavis at bio_tamu.edu
    jmd9261 at tam2000_tamu.edu