Dimmer Switch Deives For Fish Lighting?

[N0body Of The Goat]

I use a dawn/sunset simulator alarm clock to help my poor brain regulate its balance between melatonin and seratonin, as being a sufferer of Seasonal Affective Disorder brings on several symptoms including extreme tiredness in the winter months. The gradual increase in light (sunrise) by the alarm helps my body release it is approaching the time to get up.

Do such things exist for fish, rather than us keepers flicking a switch that decides their day or night time in a flash?
Perhaps a timer device with a dimmer?

Some (light) food for thought...

 

[waterdrop]

Yes, I think some people really get in to that with their lighting systems. I think I remember seeing a whole youtube video or something of a guy making a system of led lights to simulate sunrise and sunset. There was probably a link in some post here on TFF. WD

 

[fluffycabbage]

wow i'd love to see that! great idea

 

[BackToTheFishes]

I know its a very basic way of doing it,but,I have always made sure the room lights are on for at least 30 mins before turning on the tank.One experience of seeing a startled fish slam face first into the glass taught me that one

 

[OldMan47]

I don't know any fish with a SAD problem but I do know that fluorescent tubes are not amenable to low voltage operation for reduced light intensities. Until a fluorescent tube has enough voltage, it will not light at all. When it has that voltage, it lights fully. I am sure you could get an incandescent fixture to work much as your own fixture does but that is not what we face with a fish tank. The best we can do for ramping up the light levels in a tank is to run separate lights from separate timers. That would allow you to turn one one level after another of lights for your tank and to step them down in a similar fashion.