Vrieseas do well in a small pot,but if its root-bound,then move it up to the next size pot. Any potting soil will do,but try to use a light/airy mix for good drainage.
Not sure what you mean with the watering question. Just water roots and leaves when the soil drys out.
Bob

Depends on the Vr also. Some need to be a bit root bound to develop. Which plant do you have mclem?

Not sure of the cultivar, tag just says 'vriesea' not even sure how to pronounce it.

For the watering question, when I pour water down into the ?stalk? (forms a cup where the leaves come out from the plant, was told to put water down in this area) is there a good indicator to determine when it's full so it doesn't overflow onto my floor.

Thank for your quick responses for my first question.

I suggest you water the cup area until the excess water runs down into the soil/roots,and stop. Then slowly add some water to the root system.If you have a saucer under the plant,you should not get spillage on the floor.Excess water in the saucer can be emptied.
Bob