Why Has My Jungle Vallisneria Stopped Growing?

[andy36yr19]

About 5 months ago my vallisneria had a huge growth period sending runners every week and then there was too many so I trimmed it where the runners were shooting not the leaves and now it hasn't been growing at all no new runners since I trimmed it 4 months ago. I've been dosing seachem iron, excel, and flourish as always and I'm not sure what's wrong. There is also a stable amount of nitrates about 30ppm and ph is 6.8

 

[Colin_T]

Vallis has growing seasons and needs to rest after it produces runners. If you cut the runners during the growing season it will usually stop running and spend the next few months recovering and rebuilding its reserves.