Yeah I used to go to lake Alice, they had some hair grass growing by the edge.
Aquatropics has some nice plant selection, they're not in great health but they're good plants with some TLC.
Check out Orlando's GLA shop, its a great place and he's super nice!!
+ 100 for Orlando. As for the other store, just be careful because they also sell non aquatic plants and... well I'll stop there.