I've only found NLS locally in one store, which happens to be my LFS
. The guy breeds discus and african cichlids. Nowhere else sells it, including petsmart. I've always ordered it in the past from aquacave.
"What, exactly, is the internet? Basically it is a global network exchanging digitized data in such a way that any computer, anywhere, that is equipped with a device called a 'modem', can make a noise like a duck choking on a kazoo." - Dave Barry