I recently bought bulbs for my aquarium. I got two different types... Aponogeton and hybrid ulvaceus (dwarf lilly) bulbs. The packages say that by 15 days I should be seeing about 6 to 8 inches. It's been about five or six days, and one of the bulbs has sprouted about an inch. However, none of my other bulbs look active. In fact, two of them look like they are a getting a little fuzzy.

Can bulbs develop mold? I'm just not familiar with what the beginning stages of the bulb growth are, and I don't know if it's normal for bulbs to look like this. Anyone have any advice?