I pm'd a guy from Tunze about this. He explained that it can shorten the life of your tank up to 20%. Nothing has been tested just guesstamated. Basically you would take an average life span of 20 years on a tank which would be reduced to 16 years. Then he asked if I planned on having this tank that long. I thought about it and then thought how I will probably upgrade anyway sooooo. Doesn't bother me, I do appreciate you bringing that to my attention though. I hosted a pizza night last night for my club and now everyone wants a wavebox, LOL. Only one other guy in the club has one and he has the nano. I am getting almost a 2 inch wave now.