Ludwigia aquarium plant Ludwigia may be a lovely fresh aquarium plant that originates from the tropical North and Central America waters. It is an amphibious aquarium plant that will grow either partially or fully submersed. The Ludwigia makes a good mid-ground plant in the aquarium. They are doing need a high intensity level. This plant will like a nuetral pH scale and moderately soft water and can settle for a wide temperature range. Ludwigia arcuata Description pH range: 6-7.2 Read more