Min distance tank from wall?
Setting up this 125 (first tank) and I'm having to work some construction magic due to a house vent being right behind the stand. To keep the hi and cold temps away from the tank I'm building a special duct way behind the stand to split the air around it's left and right sides. Because of all this I'm sort of building my stand in place and won't be able to move it without reconstructing the entire little duct system behind it; the back of the stand is part of the duct system itself.
So...my question is...what's the minimum distance a tank and stand should be from the wall? Is there any reason it should be further away from the wall other than to allow whatever equipment needs to get through there? I'll be running two Eheim Pro 3e canisters in the stand itself and the tubes will snake their way up behind the stand and into the tank. Far as I know (and I'm still learning) the only equipment I'll have to leave room for is just those in and out tubes...or is there some other equipment I don't know about that I may want to use in the future that'll need to run behind the tank?
By the way the tubes leading from the tank to the filters won't interact with the duct at all. And I'll probably be using inline heaters locating them in the stand as well.