hibernating bulbs??

[Mustang5L5]

I've had a dwarf lilly bulb in my tank for about 1 year now exactly. It grew like a weed at first sending out a new lilly pad every week.

Now it slowed down and old leaves started to die back. There are only a few small (but healthy) leaves about 3-4" above the substrate. It's the only plant to expeirence dieback and it was one of the more dominant plants in the tank.

I thought i read bulbs go through seasonal spurts. SHould i just leave this bulb as it is or do i need to pull it out out the water? Anybody?

 

[Da_Oz]

If you pull it let it dry for a month and then put back in.