So i bought a 15.9 oz jar of Exo Terra calcium from my local reptile shop yesterday. I opened it this morning and used it before noticing it expired last year. I called up to tell them it was expired and sinse i opened it i cant return it..... Even with a receipt. Should i be okay with using it? Will it harm my reps? Or mine as well trash it? Also the Exo Terra liquid supplement. Both were brand new and sealed.