Safe and non toxic for use in both freshwater and saltwater.This aquarium decoration no rot or any algae problems.Safe for both salt and fresh water, will not fade, and it is safe for fish and water.Realistic fish tank decoration, add beautiful scenery to your aquarium!It provides shelter, hiding spots, entertainment venues for your lovely fish.Can be as a gift for lover, family member or friends who have a fish tank, especially who also like DIY and home decorating.