I haven't posted a question (stupid or otherwise) lately so here you go. Is it better for the fish to leave the tank alone once it's set up than to change items in the tank occasionally? Since fish are trapped in our glass boxes is it a good thing to put new items in the tank occasionally to provide some sort of interest for the fish? I know they have have little fish brains, but I always have mixed feelings about taking animals out of their natural habitat. Thanks.
Gary
Gary