First Aquascape!

I’ve had fish tanks since I was a kid. I just recently got into planted tanks. This was my first actual full on scape of a tank. It is a fluval flex 9 gallon. I bought some narrow leaf Ludwigia, Ludwigia inclinata, crypt parva, Anubias petite nana, and Monte Carlo. I am trying to do low tech using uns controsoil. There is new growth on the Ludwigia and Anubias but the bottom leaves on the Ludwigia keep falling off from what I suspect is my betta swimming and resting in between them. Also a few of the stem look like there melting on a couple of the Ludwigia. Also I few of the leaves on the Crypt parva are turning yellow. It this normal for a transition to a new tank and will the melting stop or should I just cut the leaves of the parva and replant? Thanks for any help!

 

. Ok thanks. Hope after I cut the stems and replant they take! They are a beautiful plant and would hate if they all melted!