male betta

-10G tank, 78 degrees F -1 male Betta, 3 male tequila sunrise delta guppies, 3 male silver tip tetras -50% water change done on the 13th due to clouding water, added tbsp salt -KH 80 ppm -GH 120 ppm -pH 7.0 -Nitrate 20 ppm -Nitrite 0 ppm -Ammonia 0 One of the sunrise delta guppy’s seems very...

Can someone tell me what type of betta this is? I looked at a few identification guides, but I am not sure. Is he just a Plakat? His tail doesn't seem as rounded, but he is also not that old, just got him a couple of weeks ago. I almost thought it was female but the store said it was male...

Okay and this guy was like this when we got him....but willing to do something to help if we can.

I just recently discovered my male betta looks like he's losing scales and color (shown in picture). It looks almost like his tail is shedding, too. I've never seen this happen before. I clean his tank once a week and I treat it with Betta water dechlorinater. What can I do?? I love my little...