I recently picked up a used Red Sea Max 130D 34 gallon AIO from a coworker who decided to get out of saltwater and sold me all his stuff. It was a little dirty and needed a few pieces of upgraded equipment but its all there including skimmer and doesn't leak. I did order the upgraded Red Sea pump since the two originals were recalled and both failed on him a few months ago and he lost most of his fish (the main reason he is getting out of the hobby). I did rehome his fish for him which were a 5"blue hippo and 12 years old clownfish. The tang went to a LFS but I kept the clown and purchased a second one. I figure I'll set this up as an anemone/clown tank. The two are currently in QT for the next 4-6 weeks being treated with copper and are doing fantastic. I plan on ordering a new heater this week to replace the one it came with. Also, I installed my Tunze Nano ATO in the back chamber. I added about 20# of dry sand that I rinsed out really well a few times to rid it of any fine particles and the like. The tank came along with about 15-20# of LR that I dried out for 2 weeks then hosed down to get rid of all the red colored algae that appeared to be all over it. Then I placed it in a tote in my garage with a heater and powerhead for the next few weeks to cure.