Aquarium Plants Discounts Madagascar Lace Bulb - Aponogeton madagascariensis You will get 1 Madagascar Lace Bulb ready to place in your aquarium. Grows when water temperatures are between 65-72F. The plant will start growing after a week of submerging the bulb Grows fast and large in a few weeks under proper conditions Make your aquarium stand out with this beautiful and hard to find plant Perfect for 10+ gallon aquariums. Not recommended for tanks with temperatures above 72F.