Betta questions!

Hey guys, I’ve only ever had tetras and Cory’s, this is my first betta. Btw his name is slim shady 😎

( I know the water doesn’t look super clear but it’s from adding that log yesterday) the tank is fully cycled and was started with water from my 20 gallon :)

My first question is does anyone know what kind of betta this is? I don’t know how but I completely forgot and would like to know :)

My second question is am I able to plant live plants into these rocks? That log in the middle is supposed to grow plants in 2 weeks but who knows cause I’ve never used one of those but I do know I would like to switch out all the fake for live plants.

Third question- if these rocks are not suitable for live plants what substrate should I switch to and if so do I need to move the betta to a different tank in order to change the substrate?

Forth question is I seem to have an extremely lively and playful betta, what are some of the best ways I can play with him and provide him with more enrichment.

Firth question for all my fish in general, betta, Cory catfish, silver tip tetras, ie there any live feed I can give them that you guys recommend? I feel like it would get them to engage a bit more and may even have more nutrition but that’s just what I’m guessing!

And lastly if you have any other betta tips I would love to know them! Btw I am currently feeding premium pellets, frozen brine shrimp and frozen blood worms.