That's what I thought. In the Nano section there's a thread called "Our First Nano". It's a 12 gallon and they have a Cardinal, a Chromis, and a pair of Maroon Clowns. I voiced my opinion on that, but I don't think he got the message.
If you have a sec, please post your concern as well. Maybe seeing that i'm not the only one who is concerned about that will make them change their mind.
Thanks.