Not running on my tank but my D-D aquarium solution refractometer...it has been with me for over a decade, still as good as day one and never once required a recalibration in all that time, you get what you pay for unlike these cheap Amazon and Ebay junk ones
My tank is only about 18 months old, do nothing has had to stand the test of time yet. I was encouraged to see a few posts regarding the longevity of Ecotech stuff. I have two MP10 and one MP40 and if they made it a decade that would be fantastic!Longevity of reefing equipment is a good thing of course and we should celebrate those pumps, lights and gear that has stood the test of salty time! So let's do it today and talk about the aquarium equipment that keeps on keeping on!
What's the OLDEST piece of equipment you have running on your tank and how old is it?