Originally Posted by LolaQuigs
I've had some that sprouted, but if they're growing mold then they're duds. Some of the brands have a guarantee, where you can mail in proof of purchase and the dead bulbs and they'll send you more. You could try that if you still have the packaging. Definitely a good idea to try and sprout them ia separate container, because it's really a crap shoot whether they'll work or not, and when they mold they can really mess up the water.
Its just cheaper to look the company up on the web and call them to order a bag full.
Aponogoten are a strange variety of water weed, they have three different modes of propagation. Most the varieties are too large for most aquaria we keep betta in but there are some tricks to make em grow small.