I think how far you place the tank from the wall depends on a couple of factors.
If you have wall to wall carpet, you need to stay away from the carpet tack strip approximately an inch.
If you have canister filters, allow at least twice the diameter of the tubing and any quick disconnects that would be back there.
If you want to add a Hang On Back filter or may in the future, that dimension needs to be taken into consideration.
I have been leaving about 4 1/4 inches between the back of the stand & the wall. This allows clearance for an AC110 to be easily removed for servicing.
I can also still get the vacuum cleaner nozzle behind the stand to clean and my cats can get through without getting stuck.
If you have wall to wall carpet, you need to stay away from the carpet tack strip approximately an inch.
If you have canister filters, allow at least twice the diameter of the tubing and any quick disconnects that would be back there.
If you want to add a Hang On Back filter or may in the future, that dimension needs to be taken into consideration.
I have been leaving about 4 1/4 inches between the back of the stand & the wall. This allows clearance for an AC110 to be easily removed for servicing.
I can also still get the vacuum cleaner nozzle behind the stand to clean and my cats can get through without getting stuck.