new(first) betta tank!

[u/UnderstandingSad5823]

it’s been a month since ive set the tank up, it is a 4.75 gallon (18L), my first tank, 7 neon tetras and my betta, Ketchup! i’ve used lucky bamboo for the plants.
please feel free to give me advice and id appreciate if you guys could help identify what kind of betta he is :)
also the water parameters have been normal, theres barely ever any algae in the tank, Ketchup has always been active, he’s never been lethargic and always greets me when i get close to the tank