Hey guys, I'm back again with my rescued betta. He's doing fine in his 3 gallon and his filter (he's getting his heater tonight after the first one we got didn't work [emoji849]), and I'm noticing his fins have white around the edges. I think it's his fins growing back from either fin rot or tail biting. But there's a silvery grey color to some of his fins and body - it's not fuzzy and he seems to be acting fine. I noticed that the regrowth is red/white but the original grey color is staying the same. Is this ammonia burns from when he was in his bad conditions before I got him? He's eating well and he is active and I'm keeping up with water changes. If it is ammoni