Re: Should I leave the light on?

Daniel Morrow wrote: 
"Suzie-Q" <sme617x@xxxxxxxxxxxxx> wrote in message
news:sme617x-C48710.12134818072005@xxxxxxxxxxxxxxxxxxxxxxxxxxx

Should an aqarium light stay on 24/7? 


Nope. Fish need to sleep too or else they get stressed out which after a
prolonged period of light can cause the fish to get sick and perhaps pass
away. I think my silver dollars have some kind of eyelid function but I will
never test it and most if not all other fish don't have eyelids or ways to
sleep with the light on although I have had an experience or too when I was
in late grade school where I had my betta tank lights on at night and he had
a lot of daylight during the day and I think that betta was able to sleep
with the light on but I am sure that was one thing that stressed him out and
killed him as you could imagine what it is like for a fish by keeping your
eyes open while trying to sleep. Use a timer - they are pretty cheap and
make the lighting easy. The only road block I can foresee for you is if your
light is an old fluorescent without a starter other than a special switch.
Good luck and later!


Not only do the fish need a photoperiod, but you will tend to grow a lot of algae with the lights on 24/7. Plant's can't use 24 hours of light but algae sure can!

--
Elaine T                        __
http://eethomp.com/fish.html  <'__><
rec.aquaria.* FAQ http://faq.thekrib.com
.

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