The listing, Frogbit-1XL Handful LOW GIN! has ended.
This is for as much frogbit as I can hold in one hand. That's about 4-5 times the amount of a typical pet store portion. (Yes, I have big hands.)
Frogbit is very much like duckweed except it's easy to control and it doesn't clog your filter.
It's good at absorbing nitrates, phosphates and other impurities, cleaning your water and helping to starve out algae.
It also relaxes shy fish by creating overhead shelter.
My angelfish are very small, by the way. The leaves only get as big as a thumbnail.