Hello! I'm going to be buying more peppered corys to increase from my current 3 to a proper school of 6+ I'm pretty sure I have 1 female and 2 males now. What sex ratio would make them the most happy and comfortable? I've read that it is 2 males per female for breeding. I'm not very concerned about breeding. It would be fun to have a few fry once in awhile but not planning to deliberately breed, and mostly expect eggs will get eaten. I've also read posts in which owners talk about their corys like they have paired up, which would suggest a 1:1 sex ratio. Primary goal is happy fish. Any experience or insights into what would be best? Many thanks in advance!