I know it is very important get a tank level. But then again, nothing is going to be absolutely perfect, so I want to know what the limits are. I actually built my stand pretty level, the floor is off a tiny bit. The bubble was actually just touching the line, and I shimmed it and its pretty close to the center. I have a plywood top on the stand, and when I place the tank on it, it does not wobble at all, but at one corner and in the middle, there is a little gap between the tank and the top of the stand. I can slide a credit card in there, and nothing more. Is that anything to worry about? Should I leave a card under there, or is not a problem. I ran a metal straight edge across the top to make sure it was flat, and just one corner has that real small gap. I know nothing is going to be perfect, but I just don't know what is an acceptable range to be off a little bit.
The tank is 50 gallons by the way.
The tank is 50 gallons by the way.