well if we're talking *possible amount that can survive in a 10g* then yeah 3-6, but the point is for fish to be happy and in an environment as close to nature as we can possibly emulate and that would be no smaller than a 55g so that they can school and have lots of swmming space - so yeah, anything smaller than 55g of course they
can be , but should they be? nope. I realize most of you know this, but it's always good to elaborate for beginners with similar questions that come across the forums and read
a similar question can be compared to one like *can a rottweiler live in a 1 bedroom apt?* yeah he can with lots of love and one human owner, yeah he can even be kinda happy -- but should he be in a 1 room atp? no - they are more suited and ideally happy in a much bigger apt - more like a house with a yard and with lots of outdoor excursions - to be really happy and healthy. You also shouldnt have lots of chihuahuas in a small apt for the same reason. Of course there are always exceptions to every rule, but for the most part, we need to be reasonable and respect animals' needs, and fish are no exception.