This aquarium decorations would fit 7 - 20 gallon and up aquarium nicely, bright colors make your aquarium full of vitality. Package includes: 25 Pieces assorted Heights plastic aquarium plants: Various Heights 6 to 30 cm. ( 2.4 inch to 12 inch ), 9 different styles. Safe fish tank decor: The aquarium decor plants are soft and won't hurt your fish. It is ideal for both fresh and salt water, do not affect the PH in the tank. The fish tank plants will neither fade nor create pollution to the water, which will provide a comfortable and clean living environment for the fish. Easy to clean - The smooth surface is also very easy to wipe and keep clean. Please wash it before using!