1.   Most aquarium plants come from tropical and subtropical areas, with a few from the warmer parts of the temperate zone.

2.   The species of Aponogeton are practically the only aquarium plants that must be virtually propagated from seeds.

3.   They are suitable aquarium plants and are cultivated like Cryptocoryne species in a medium-rich substratum and water that is not too acid.

4.   The aggressively invasive species, first introduced in the United States as an aquarium plant, also has been spotted in irrigation canals and lakes in the Brownsville area.

5.   The insistent algae are my long-sought aquarium plants, welcomed because plants in larger sizes refused to live.

6.   Use the chopstick to push the plastic aquarium plant into the fruit cocktail at the bottom of the bowl.