Re: [APD] Tank Lighting

[Vaughn Hopkins <hoppycalif at yahoo_com>]

Fish only:  The light is there for you to enjoy looking at the fish.   
Although some fish are skittish with very intense lighting,  
especially with light colored substrate, you can pretty well decide  
what type like you like to use.
Plant only and Plant and fish:  The light is there to grow plants.   
That is best done with lights having color temperatures between about  
6500 and 10,000K.  Actinic lights are of little benefit for the  
plants.  You need around 2 watts per gallon of light in order to be  
reasonably sure the plants will grow well, but the actual spectrum of  
the light isn't critical - again, it depends on what looks good to you.
Plants also need to be fed - that means they need NPK and traces,  
plus a source of carbon.  Without that they will not grow well, if at  
all.

Vaughn H.
On Jul 23, 2006, at 1:29 PM, Gay wrote:

> Hello
> I'm looking for information on the Spectrum / bulb temp desired for:
>
> 1. Plant only
> 2. Fish Only
> 3. Plant and fish
>
> The reason I'm asking is that I have a 30 gallon tank, fish and plant.
> The tank is 18 inches deep
>
> I have T-5 double bulb strip light with 1 6700K and 1 Full- 
> Spectrum. Plants
> seem to do well; but fish / tank seems dim to the eye.
>
> The other T-5 double bulb strip light has 1 10,000K and 1 True  
> Actinic 03
> Blue bulb. Fish and tank are bright and well lighted; but the  
> plants do
> poorly. They die as fast as I can put them in the tank
>
> Any help or suggestions will be greatly appreciated
>
> Gay
>
>
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