I would caution you to ask a few questions before buying him.
The reason I say this, is that back before Xmas I saw an unbelievably stunning betta (vanilla icecream colour, with a neon blue edge to his fins) in my local fish store.
He was flaring constantly, and looked stressed.
I wanted him soooo much.
The sales asst was happy to talk about him.
Turned out he was the only one in the whole delivery who hadnít settled. He flared constantly and didnít eat.
He wasnít on sale and wouldnít be, until he had eaten and calmed down.
I went back a few days later (I REALLY wanted him), to be told Ďhe hadnít made ití.
So Iím just suggesting that you weigh things carefully. He may settle nicely in your tank, away from the stresses of the fish store. Or alternatively, the constant flaring may be a symptom of behavioural issues or illness.
: (Kham) mature setup; betta, purple rasboras, amano and wood shrimp. Heavily planted.
22litre cube tank
: (Tagawa); betta, 1 amano, yellow dwarf shrimp. Pond snails and 1 assassin. Heavily planted.
57litre cube tank
: ember tetras, 2 amano, 1 nerite, pond snails, 1 assassin, doing his thing. Heavily planted.
; honey gourami, cherry barbs, green neons, otocinclus, nerites, pond snails, amano. Heavily planted.