there's another option that nobody has mentioned yet -- bicycle hoist.
i know quite a few people who use bike hoists to lift heavy light canopies off of their saltwater reef aquariums. they're nothing more complicated than a set of pullies, but they're an easy to find off the shelf item that isn't very obtrusive.
i know quite a few people who use bike hoists to lift heavy light canopies off of their saltwater reef aquariums. they're nothing more complicated than a set of pullies, but they're an easy to find off the shelf item that isn't very obtrusive.
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