Here is a really simple method to control and maintain the exact water level in your aquarium. Acquiring Resources Tools: Drill and drill bitsknifeMaterials:(1) large airtight container (I used a 1 gal tea jug), preferably made of thicker plastic (not milk jugs). Free(1) vertical or horizontal fl...By: c4jjm
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from Instructables: exploring http://ift.tt/1ytm8al
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