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| | Landscaping Indoors |
 | | A water garden is a soothing, beautiful addition to the indoor landscape, and it does not have to be a financial burden. |
 | | The water plants indigenous to the warm waters of tropical South America, Africa, and Asia—such as the sword plants (Echinodorus species), Cryptocoryne species and water ferns (Ceratopteris species)—require permanent warmth, provided by an aquarium heater, for example. |
 | | For tank- or bowl-style water gardens, put down a layer of substrate that is appropriate for the dimensions of the container, for example about two to three inches for a 20-gallon aquarium and about six inches for a 60-gallon tank. |
| www.bbg.org /gar2/topics/indoor/handbooks/landscaping/water.html (1673 words) |
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