Soooo I was thinking about getting sparkling gouramis for my tank.... but I found some scarlet badis at Petco that I've been looking for quite a while. They're gorgeous! The tank has had a few technical issues, though not major or catastrophic, so I'm going to wait a few days for everything to settle down. I have a shoal of ember tetras in my 10g planted tank. How many scarlet badis(es?) would be the best for my tank?