An indispensable accessory for your aquarium. The main features of the Tropica plant book are a wealth of beautiful water-colours and information about 150 different tropical aquarium plants. For this reason alone, the plant book is an indispensable accessory for aquarium experts and novices alike.There is a range of good tips and guidelines on plants, algae and aquarium layout in the 100 pages of the plant book. 2nd Revised Edition.