I leave mine like i buy them...my collards last almost forever..the thinner greens last about 3 weeks..i have two uro's but still by the time they start to get bad there pretty much finished...
you could try buying 2 types of vegetables, greens, every time you go and buy some..change it up, he'll still get the variety..things like grapes or apples or whatever that you wanna throw in for variety dont really go bad to quickly...
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Adam
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