Originally Posted by Angel079
Looks all cool, no doubt bout that.
A side note to think about for a min thou: when doing this in planted tanks; Do you all know that plants require a full dark period of around 10hrs per day?
Also bare in mind fish can not run off into another room or anything to go to sleep while these LEDs are on and they don't have eye lids like we do - While I don't know about the exact studies about sleep deprivation on fish, judging from a human perspective where its used for torture, I highly doubt its healthy long run; so turning the normal lights off and LED on and vise vera in the morning can not be healthy in the long wrong.
That is an interesting though, but a proper moonlight should not keep the fish awake. The cold cathodes can run too bright, but are normally run much dimmer and all the fish show their normal sleep behavior. Its the same with the LED's if you use to many of them. I ran the LED one last night for about an hour then checked on the tank. All of my garras were asleep in their normal sleep spots. Tapping the glass got no reaction from them so there were defiantly asleep.
As far as the plants you are correct about that. However with LED lights and plants you still need a certain number of WPG, usually the same number as if you were running metal halides on the tank. Also 3-watt leds are used for plant growing. I have 4 small LED's running that all together make up about 1 watt or less.
Cold cathodes are more powerfull than the LED's, using up 3-6watts total. As far as I know they are totally worthless for plantlife. Thats what they say at least. We use to say that about LED's too though. Either way they work great for moonlighting, just not for growing things yet. I think its possible... I've seen people try it before with mixing lots of tubes together. DIY results I have no seen yet.
BTW has anyone else noticed if you take your lights off the timer and let them run way longer the plants still stop photosynthesis
. Its like they have a internal clock. Sometimes my lights get left on till 3am and the stem plant have all their leaves pointing straight up like its dark.
also plants and fish survive just fine in the wild with the moonlight...