sorry to hear, I kinda went down the same path about a year and a half ago (Jan). Put up a 300 to replace the 140. Used the 140 as my big qt tank while the 300 did its thing...Then moved them all to the 300 after about 3 months...Since the 140 was like 10 plus years old used it for my new sump design for the 300. sump is 72x22x20(old 140)