Hi!Your boy is a veil tail.The tank size is perfect,plants are great.Freeze dried anything isnt good for them,they have short stomachs.Soaking the bloodworms will help keep him from being constipated so much.What brand pellets?If you are unsure about him eating,you can soak a few in garlic juice.Bettas as well as most fish love the taste,and it also helps clear any internal parasites.Hes a pretty boy.The filtration,if its bothering him(not all are bothered by it and some will play in the current)Make a baffle out of a soda bottle.