i kinda just did it, i told my boss if anyone had a problem with it i would take it down. but it was a hit and people love the tank. I find people sitting in my chair all the time, just staring at the tank. i got three people interested, one person is going to try SW. I sit here almost everyday so it get the best attention. Plus i got oodles of ro water, i just bring in a couple buckets and a bag of salt for the WC.