i was gonna say you could gut out an old TV and turn the "screen" into a viewing area for a tank.
Like this:
http://www.thekrib.com/Plants/People/Olson/fishtv.jpg
or this:
http://www.people.virginia.edu/~jps8...507662_28b.jpg
or this:
http://www.ratemyfishtank.com/images...650/1574_1.JPG
I imagine you could do the same thing with an old computer monitor or one of those iMac computers.
someone on here also made a guppy tank out of a cheese puffs container but i dont remember who it was...
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Current setups: 1800 gallon koi pond, 10 gallon planted, 150 gallon reef, other FOWLR tanks