Aquarists seeking the non-stop action of hardy, fast-moving fish need look no further than the ever-popular Danios. All are small, sleek, top-feeders that do best in schools and accept a wide variety of foods. Zebra, Giant and other Danios seem to be continually chasing one another, but actually get on quite well in community tanks. They will, however, consume a lion’s share of the food before “less aware” species even know its feeding time, so be careful to monitor everyone’s intake.