I have had a cold water 10 Gallon/45 Litre fish tank for nearly a year. In it, I have two male coldwater Platys. The platys are happy, the water quality is good but I recently added only two male White Cloud Minnows that are smaller than the Platys. This makes the tank stocked with four fish in total. I also have a moss ball and plan to get more. I read that White Cloud Minnows are only happiest in groups/schools and may also be intimidated by bigger fish but the two Minnows seem to be very happy, well settled, eating all their food Etc. Also, the Platys and the Minnows are all interacting very well and there are no signs of aggression, despite them all being males. Will the circumstances in my tank become a problem resulting in me having to purchase more White Cloud Minnows to form a school or, considering how things are going, can I keep my tank stocked as it is?