Lighting for my 2.5g nano - The Planted Tank Forum
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post #1 of 3 (permalink) Old 02-22-2008, 04:20 PM Thread Starter
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Lighting for my 2.5g nano

I have a 2.5 gallon mini bow at work. The hood came with a 15W bulb in it. I recently replaced it with a 10W compact florescent, but the color of the bulb looks way off. It's a pinkish/purple color and looks really dark, I think it might be for coral and not a planted tank.

Can anyone give me some suggstions for lighting this thing? I'd prefer a bulb instead of taking the hood off and using a lamp.

This tank is pretty low tech, I only have an anabius and some java fern in it right now. No CO2 and no dosing, only a little Excel once a week.

If I can get the lighting straitened out I'd like to put some med. light plants in it, any suggestions for something that stays relatively small? dwarf sag maybe?
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post #2 of 3 (permalink) Old 03-15-2008, 07:41 PM
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I'm guessing this is what you bought:
Coralife 10 watt Colormax bulb?

I suggest you replace it with another 10 watts daylight bulb. Petsmart sells one made by Marineland. It should be in the lighting section in a small box. It's a 10 watt 5500K daylight bulb, perfect for plants

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post #3 of 3 (permalink) Old 03-15-2008, 09:16 PM
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No the bulb you have is a good one for FW plants. The visibly pinkish spectrum is what they need, but like you said, it does not look so good to the human eye.

I couldn't find the kelvin rating on that bulb anywhere, but if you want a bulb that looks better to the human eye but still will benefit plants, you should probably try to find a bulb with a kelvin between 6700-10000k.

Here are a few good places to look for bulbs:

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