Plants

Plants are often classified as tropical and coldwater but it is proposed here to divide them into aquarium or pond plants. Tropical plants will root in a coldwater tank kept in the normal living-room of a home, especially if an aquarium toplight is functioning. Strictly coldwater plants, on the other hand, are normally considered to be those that will thrive out in the open, winter or summer.

The main distinction of the two categories are that those grown with the aid of artificial heat, eg in a hothouse are for an aquarium while those grown in the open are for pond. It should be noted that although the same plant is often found both indoors and out, the pond one tends to be larger and coarser.