I thought I would commit threadomancy to provide an update on Howl. For starters he's finally eating pellets, the only kind he will eat is Aqueon Betta Food. I'm still doing Daily water changes and will probably keep doing them for at least another couple weeks.
Also his fins have regrown nicely, a bit uneven but it's better than nothing. His color has also come in beautifully. I'm attatching a few of his most recent pics below. He doesn't like the flash on my camera so he often runs away when he sees it come out. For reference he bit off his tail up to where it curves back up.
He also started building a bubble nest for a bottle of Prime conditioner he fell in love with, sadly it got destroyed in the water changes.