On Feb 17, 12:20*pm, (L u) wrote:
Should I get a bubble wand? It's a 5 gal tank. I want those "curtains"
of bubbles. Will they also make more oxygen? I have an undergravel
filter.

Bubble wands per se do not put oxygen in the water. They create water
mpovement at the surface which allows oxygen to dissolve and be
induced into the water. Fish can not utilize the bubbles given off by
air stones etc. They have to extract their air form the water by way
of gills and by creating water movement especially at the surface it
allows more surface area to be exposed to become saturated with O2.

Air stones and bubbles wands are for the most part not necessary if
you have proper filtration and are not overloaded.unless you like to
see those ^&*(&^*%V bubbles which I do not.