oxygen weed造句

Oxygen weed ( " Lagarosiphon major " ), an aquarium plant and invasive species native to Southern Africa, has been a problem in the lake's ecosystem for some time.
It is roughly an hour from Christchurch and is a popular site for rainbow trout fishing as the trout population in the lake is thriving due to the dense oxygen weed beds that provide a plentiful food source.
It's difficult to find oxygen weed in a sentence. 用oxygen weed造句挺难的