Blue Led Spectrum

[Fingers68]

HI

Just setup some blue LED lights (moon effect) I am using this to view some behaviour in the evening for about 4 hours, then turning this off.

It has four settings, from very intense uv effect sort of full Moon to a subtle half Moon.

I was wondering if;

A: Apart from viewing pleasure, is there a benefit to this photo spectrum for colours to the corral or fish behaviour?

B: Should I leave it on all night?

All looks very nice though, I will have a go at capturing this on film and post.

 

[forby3]

fingers my mate has them in his tank but he only uses the lights for a show purpose kinda thing basically to make the tank look gd when im there he has them on for bout 4 hours then the timer turns them off hopes this helps i think sum guy has done a vid of these on youtube go have a look

 

[SkiFletch]

If they're the cheap ebay ones, there's not much use for them aside frome aesthetics

 

[Fingers68]

If they're the cheap ebay ones, there's not much use for them aside frome aesthetics

I did get these from eBay, and yes there cheep and cheerful but the corral seems to respond to the light it gives off?

What is the difference apart from the costs, I guess there must be quite a bit as the price of some blue led lights seemed very top end, £80.00 for a strip with 4 LEDS?!

So that being said, is it worth going for the expensive type, anyone know of the benefits?

 

[SkiFletch]

What do you mean by "respond"? If they get puffy and let out their tentacles, that's a pretty typical nighttime response, regardless of the LEDs...

As to the high power LEDs that are really expensive, if you have enough of them you can light a whole tank with ONLY them. The cheapo ebay LED's are just 1/4watt LEDs. The high-power ones are 3 watt LEDs, so more than 10 times more powerful than their little cousins. Actually the lumen output from them is even more than 10 times more, but that's another story. There are a few people delving into the high-power LED lighting system, looking to do this as their sole light source for the tank

 

[Fingers68]

Cheers Fletch

Respond, well maybe this was not the right term, the polyps certainly remain open longer it seems, but maybe this only appears to be the case as they are show much more vivid in this light. But I wonder if this light spectrum can actualy change the colours of the correl? I am tempted to leave this light on very low during to whole night to see what, if anything comes of it.

Any how it looks very nice and means I can enjoy the tank outside of the normal photo period. I certainly dont like the idea of using this sort of light as the only sorce, There is a tank like this at one of the shops here and it just looks dull and not correctly lit, it must have cost him a fortune he has about 8 banks of 6 lights.

 

[SkiFletch]

Yes, certain blue LED's will have the correct wavelength to induce "phosphorescence" of corals which will make them appear to the human eye to have a different color. Not all LED's output the proper wavelength and not all corals phosphoresce though