GBSELL Artificial Plastic Water Plant for Aquarium Aquatic Decoration Fish Tank Ornament Length:approx.19cm/7.5"; Base dimension: Appox. 4cm x 2.5cm / 1.6" x 0.9" They are durable in salt and fresh water An excellent hiding place for fish which adds extra fun to play Absolutely safe for fish, they won't die, rot or cause any algae problems The plants are anchored with a weighted ceramic base, so they will stay where they placed in the tank