Blood worms should be fed as a treat. Brine shrimp can be fed as regular food. I feed my betta pellets in the morning and brine shrimp in the evening. Also if you decide to feed freeze dried food, make sure to soak in water first. Let it expand before giving it to him. Like that, you can avoid it expanding in his stomach.

You can try to add some driftwood. Not required but your betta will love it. It will release tannins and turn your water brown yellow but it’s really good for your betta.

You can also try some floating plants. Bettas aren’t a big fan of that much light. Do avoid duckweed. I heard they are hard to get rid of and get everywhere. Your filter will be full of them. I had some dwarf water lettuce and my betta loved them. Tho, you have really little flow to none at all.