I need to revise my statement on how long 50 lbs would last! I just had ordered 35lbs of hay and was totally shocked when it came, at how much it was. I *thought* that was what I had ordered before. I just looked and what I ordered before was only 14lbs. I got it on June 28th so it lasted me about 6 weeks. I was just stunned looking at the giant box the UPS man brought up. Wouldn't he have been the same had I told him it was hay for little guinea pigs.
This HUGE bale of hay, 35 lbs this time, should last me about 4-5 months. LOL I am still reeling.....it is a BALE! I had a nice container that my hay sat in under their cages....now, maybe 1/3 of the bale is in it with the rest out in a cardboard box on my front porch.
Eek! Since I was thinking they went through 35 lbs so quickly, I almost had ordered some bluegrass from Kleenmama despite the horrendous shipping I would pay. Bwahahaha, I am so glad now I waited!
So my revised answer is: with 2 pigs, 50lbs may last as long as 6 months...depending on how generous you are and how much those piggers eat.