Throw your photo into an editor like Photoshop (although just about any decent photo editor should work) and adjust the white balance to something warmer. Most editors will have a temperature scale in the Kelvin rating. YOu can usually directly set the temperature number you want or use their handy dandy slider to adjust the temperature up and down. If your tank is typically blue (12-22K) this is considered a cooler temperature (within photography), then you'll want to adjust your photo so that it is within the warmer range of the scale. Higher color temperatures (5,000 K or more) are called cool colors (blueish white); lower color temperatures (2,700–3,000 K) are called warm colors (yellowish white through red).
Last edited by kien; 03-17-2010 at 10:37 AM.
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