solar powered air pump in catalog

I've seen solar powered water pumps/fountains
before but today's catalog has a solar powered
air pump to 'encouraging consistently clear
and clean water'. It is $59.50. The catalog
is SolutionsCatalog.com I guess it would be
dollars to donuts, a solar powered fountain
or air pump for the health of the pond, don't
you think? Both lack running at night time
when plants switch from producing O2 to
consuming it.

I run an air pump in my deck pond, plugged
into the wall socket. Last year the deck pond
held a tropical lily. This year jan's lotus is
in there. The air pump has been taken out of the
pond and will be moved up to the deck soon.

kathy :-)