| http://www.w3.org/ns/prov#value | - You cut a hole, a little above the level of the highest part of the iMac components, and fit a tap (do you guys call these faucets when they are fitted to things other than sinks or washbasins?).I would run the power cable up and out of the top of the fishtank for safety reasons.Here comes the chemistry: What you need is an oily substance, immiscible with water, as transparent as possible, but mos
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