Common Names: Water milfoil, Christmas Tree Plant
Native to: South America, Mexico, the Falkland Islands, Tasmanie, and New Zealand
Height: 20 inches and up
Width: 2 to 3 inches, based on leaf growth
Growth Rate: Fast
Lighting Needs: Medium to high lighting (2 - 4 watts/gal)
Temperature: 72 to 84 degrees
Hardness: All water hardness conditions
Myriophyllum elatinoides is an easy to grow stem plant that will thrive in all aquariums with at least medium lighting. A nutritious bottom and CO2 addition promote growth significantly. Although it grows well in hard water, it is not necessary for optimum growth.
It is most beautiful when planted in groups, but do not plant shoots too close because this will prevent light reaching the lower leaves. (NOTE: Tropica describes this plant as Aquaticum, but the description and photo fits elatinoides, aquaticum being a pond plant that likes emersed growth)
The plant typically grows to a height of 20 inches and up, The width of each stem is about 2 to 3 inches, based on leaf growth.The leaf is delicate whorls of rich, green color. It does well in all water hardness conditions and medium to high lighting situations. Optimum growth temperature is 72 to 84 degrees, although it can grow in temps from 50 to 86 degrees.
Myriophyllum elatinoides requires medium to high lighting (2 - 4 watts/gal) to do well. If kept in low-light tanks growth is slower and whorl spacing is increased and density decreased. Plant either in the substrate or as a floating plant.
My experience with this aquarium plant is that Myriophyllum elatinoides is an easy to grow aquarium plant and is certainly at the top of the list as one of my favorite aquarium plants. This is a very tropical looking plant with a beautiful, rich shade of green. Myriophyllum elatinoides does better the higher the light. Aquarists with a medium hard water (8-12DH) might find that this plant grows very fast. For those with very soft water growth is not as rapid, although fine specimens can still be grown.
I have this plant growing in my son's aquarium with no CO2 (Seachem's Excel only, a liquid Carbon substitute) and medium lighting and it looks great! Wait until the growth reaches 8 inches and then cut just above the node. The plant remaining in the substrate will then start growing side shoots which can be detached and used as new plants. In almost all instances of descriptions on other sites this aquarium plant is said to do well only in lower temperatures as well as extremely high light. I have it growing beautifully in consistent, 82 degree temps with medium lighting. I have found this aquarium plant to be very adaptable to a large range of conditions.