Every time I do a water change it is done by doing a vacuum. This tank has
been around for 5 years. The only thing I changed about a year ago was not
having live plants any longer. They don't sell them locally, and I wasn't
having much luck keeping the ones I bought online, alive for more than a few
months. I even added one of those devices for plants... slips my mind what
they are called. Live plants certainly helped. And you know, when I vacuum
the gravel (actually crushed glass) there isn't much to be vaccumed. I
really come away with mostly tinted water.