![]() ![]() The vertical rectangle represents the thickness of the glass back. So here is a very crude drawing I made to try to show what the article was saying. It is under the "Reefer" section that appears every month in the magazine. A backdrop will help hide the any tubing and cables you have hanging on the back of the aquarium. I've searched for the article but the only thing I could find was the listing of the article showing that it was in the May issue. Many fish keepers use a background for their fish tanks to make them more aesthetically pleasing. Check out our black aquarium background selection for the very best in unique or custom, handmade pieces from our pet supplies shops. They then wet the inside of this background and removed all air bubbles between the background and the glass and it showed results very similar to the painted backgrounds (~30% reduction of light). They also took a plastic background and taped it on the back. Both colors resulted in the same reduction of light. ![]() It's kinda hard to explain but the article has illustrations that show this. With the back painted the light will only reflect off the inside section of the glass wall and does not get reflected from the outer edge of the wall. Apparently light will reflect from the inside part of the wall, but also as the light travels through the glass it will also reflect back into the tank from the outside side of the glass. Something to do with the light reflecting back into the tank from the outer edge of the tank. Is this due to blocked indirect light which would have entered through the back of the tank, or by light absorbed by the colored background? Also, did they compare different colored backgrounds (like blue versus black)? ![]()
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