A large stock of aquarium plants are available through EBay for marine tanks, coldwater fish tanks, tropical tanks and garden ponds. Plants make a set up more natural to llok at and more importantly for the habitat of your fish. You can purchase moss, ferns, ludwigia, dwarf grasses, and many more to suit your particular collection of fish. aquarium plants also act as a biological filter, absorbing impurities such as nitrogen thereby creating a more natural and healthy environment for your fish to live in. They also provide cover and security to fish and are great for covering up equipment like filters or heaters too. Check back daily as stock change on a daily basis and sometimes prices.