After deciding carefully where to position the aquarium, you
can begin to set the foundations for the tank
As you can see from the photograph, I am using a steel
two-tier stand. Later I intend to install
another tank in the otherwise empty space below the main set up.
I like to place a piece of ¼ inch thick plywood
directly on the stand. Metal stands are not always perfectly square and this
helps me to align the stand with the back and, in this case, side walls. It
also ensures that I will place the aquarium square on the stand. Additionally,
the plywood allows me to place a weight (the bucket of water in the photograph)
on the stand while I level it. I have found that as weight is added to stand,
i.e. the aquarium is filled, it will "settle" on the floor and may not end up
level.
A final advantage for using a plywood base in this particular
installation is I will be able to screw in a light fitting for the lower
aquarium. Remember I mentioned you should always plan ahead.
Using a spirit level, check that the stand is level front to
back and left to right. Do this on all edges of the stand and adjust as
necessary using wooden spacers.
Time spent ensuring the stand is on an even plane now will
prevent years of irritation later when the water level appears to "slope" away
from the top edge of the tank