is my lighting ok? - The Planted Tank Forum
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post #1 of 4 (permalink) Old 10-01-2007, 03:51 AM Thread Starter
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is my lighting ok?

on my 35 i have a CURRENT ballast with 2 CURRENT 65w bulbs that came with it. One of the lights is blue.... is this supposed to be used on a planted fw tank? What is the "blue" light called and what is it used for?

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post #2 of 4 (permalink) Old 10-01-2007, 03:55 AM
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Not exactly sure, but I think it's just for displaying the tank, but I'm sure the plants can't use it.
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post #3 of 4 (permalink) Old 10-01-2007, 04:26 AM
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the blue light is likely a 10,000k bulb that is usually used in a salt water set up, im not sure about the use for fw plants, usually people use bulbs in the 6-8k range for fresh water set ups.

as far as your lighting being ok, I think you should be able to grow most things quite well with your lights, and the blue can bring out some nice colors in your fish.
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post #4 of 4 (permalink) Old 10-01-2007, 05:13 AM
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The "blue" bulb is an actinic bulb. It is really only useful in salt water and does nothing for your plants. That said I have one on my tank because it makes that fish look a little better. So if your working out your watts/gallon (w/g) don't include the blue bulb. So your at 1.8 w/g thats just right imho. If you use some form of Co2. i.e. Excell.

As far as what K value to use, anything between 6K and 10K is good. Most people will tell you its a personal preference. The 6K's tend to be on the yellow side and 10K's on the blue side of the spectrum. I like 10K's cause the light is more "clean" looking.

I don't know how new you are to planted tanks, but when you first put plants in your tank put a whole lot of them. Some where around 3-4 fast growing plants/gallon if not more. Cause you can always take a lot of them back and trade them in once the tank has grown in.

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