I don't know what the above post is supposed to mean, but Kuhli Loaches have been kind of rare lately. Bad stock during the last two years or so, at least in the U.S. and I believe elsewhere, Most of them being wild caught, their numbers haven't bounced back yet.
Oofeeshy meant that brownbread said 'a' kuhli loach (i think) because they like to be in groups so having 'a' kuhli loach probably isnt the best idea, in short, you would rarely see it, 'some' kuhli loach's' would be a better idea.
I have seen a small upswing in them so the "Kuhli drought" may be over. More shops seem to have them though most sell out before I get a chance to buy any. You're lucky where you are that they've been in better supply.
I have 5 or 6 of them myself and only ever see 3 or 4 at time. They have their own tank too. Shy guys.