I got the cal rx "brand new" and it leaked since day 1. Patched it and worked for awhile. Now has another leak. Media is 2 months used but still good. 4g nano tank used as my external refugium has a leak on the external overflow. Still has clean pest free chaeto and loaded with pods. Easy fix with weldon 16. I just don't have the time for it. Fcfs it'll be trashed by tomorrow night.