Bamboo in a livebearer tank

Hey guys I have a 20 gallon long tank with 4 mollies, 4 platys, and 2 cory catfish.. I was wanting to get some bamboo to put in my tank. The bamboo at my local Petsmart looks great. Has anyone ever kept bamboo? Any Advice? Tips?

 

I have kept it with several species of livebearer with no issues for years.
It will need to be fertilized.

 

I have read online that it cannot be fully submerged. Is that true? I've seen them fully submerged at my LFS and they seem healthy.

 

If kept fully submerged they start to rot.

 

Some bamboo can be kept submerged to a point, lucky bamboo, the kind that curls, can be kept in the water as long as the leaves are exposed to air.

 

How do you anchor the bamboo properly? My 20 gallon is approximately ..say.. 15 inches tall.. could I just make sure it's packed closely to the bottom with my gravel?