Hi, wondering if anyone knows answer - bought two MP40QD's for my new 225gal reef setup from a LFS and I see they are now called MP40mQD (what is the 'm'?). THE MFG dates on both are Jan2022, just bought them now in Mar2024. LFS provided a minor deal on them but I want to know if I should bring back and get latest ones. I don't know if ecotech upgraded these since Jan2022...