I don't know exactly what you are asking. But a 8-9L bowl might not be quite enough for some comets as well as white cloud mountain minnows, they would do much better in a small tank where they can swim more freely. Sorry I can't help much as I don't quite know what you are asking.
If you are looking for a small tank It happens I have a 90L complete setup on trademe with a stand and hood,prime filter, lights etc , and three comets, and i'm in Auckland aswell, incase you were looking. Anyway, It now looks like i'm forcing you into a purchase :lol:
However, I would strongly recommend a small tank no matter where you purchase it from and the fish will benefit from it, and due to the filter you won't need to do a 20% water change weekly, which would reduce stress and save time.
Sorry I can't be of much help, If you could try to explain what you are asking and I'll do my best to help you out.