Biosphere

Instead of using 419 dollars on a 9 inch ecosphere, I would much rather buy a brand new 29 gallon tank, all new equipment, make it very nicely planted, and keep it up for 6 months.
 
To be fair, most ecospheres I've seen aren't actually that expensive.
 
It's (sort of) possible because the shrimp, Halocaridina rubra is an algae eater and ridiculously hardy. It can only last so long though.
 
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