re: Lights and condensation covers.

>From: mtn at delarue_demon.co.uk
>I've made my own lighting fixture for fluorescent tubes using plastic
>the guttering is semicircular in cross section and just about the right
size to 
>cover the bulbs. The light fixture rests on top of the tank and overlaps
>side by about 1 inch. Between the light fixture and the water surface I
>have a cheap clear plastic condensation cover. To try and improve light 
>penetration I intend to remove the condensation cover so there is nothing 
>between the lights and the water surface (approx. 1 or 2 inches below). I
>this is a fairly standard practice so some of you will already be doing
>however I still have a couple of concerns:

Some of my tanks are poorly lit but I'm not willing to allow evaporation,
so I want the tank covered.  I can't prevent reflective losses this way,
but I think I significantly reduce transmission losses by covering my tank
with cellophane.  If you were to cover the bottoms of the light fixtures
with cellophane, perhaps this would help.

David W. Webb           Enterprise Computing
Texas Instruments Inc.  Dallas, TX USA
(972) 575-3443 (voice)  MSGID:       DAWB
(972) 575-4853 (fax)    Internet:    dwebb at ti_com
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