Planted Tank Enthusiast
Join Date: Oct 2002
Location: Minneapolis, MN
It is called dwarf saggitaria (Saggitaria subulata "dwarf"). This plant can still get to about 12" if not pruned. Mine started creating runners after about 4 months in the tank, but that is shortly after I got a better CO2 system and more fertalization. So, it could be correct that they reproduce rapidly under given conditions.
If you have high light, I would reccomend Echinodorus tenellus (sp might be tennelus) instead of the dwarf saggitaria. This plant stays smaller and will send out runners more if the conditions are right.
Don't get the saggitaria confused with Echinodorus tenellus, as I think my LFS might have. They have a display tank that they show many plants in so if there is a plant for sale in another tank they will reference that it is in the display tank. They did this with Echinodorus tenellus and I think they have Saggitaria subulata "dwarf" instead, since it is much taller and suites the height of the saggitaria much better.
As far as ideal conditions for growth, it has to be established with good roots before it will send runners (like many plants), and it loves high light, though it will be fine in medium. Good luck!
Tank in transition! 55 gallons, hard water.