Ask the feeding question first, and watch the answer
A scarlet badis is a micro-predator, and the first question to ask a fish shop is what the fish in front of you are actually eating. Many scarlet badis arrive as wild-caught fish that recognise only live or frozen foods — tiny worms, baby brine shrimp, daphnia — and ignore flakes and pellets entirely. Ask the shop to feed the tank while you watch. A fish that hunts eagerly is a very different purchase from one hanging motionless in a corner. If the honest answer is live food twice a day, you need to know whether your kitchen routine can sustain that before the fish comes home, not after.
Ask where the fish came from and how long they have settled
Ask whether the scarlet badis are wild-caught or captive-bred, and how many days they have been in the shop's water. Fresh imports are still recovering from transport, and a fish that has rested, coloured up, and fed in the shop for a week is a far safer buy than one bagged the day it landed. Captive-bred fish, when available, are often bolder and more willing to take frozen food. A good shop answers these questions plainly; vague answers about origin or arrival day are a reason to wait for the next shipment rather than gamble on a stressed fish.
Ask how to tell the males from the females
Scarlet badis sexing is a question worth asking in the shop, because the vivid scarlet-and-blue barring belongs to the males and females are small and drab grey-brown. Shops frequently stock almost entirely males, since those are what sell. Ask whether true females ever come in, and whether you are looking at a dominant male and a subduant one that has dulled its colours to avoid trouble — a common misread. Two males in a small tank will squabble over caves, so ask how many males the shop would honestly put in a tank your size, and what cover they need to stay out of each other's way.
Ask what water the fish are living in right now
Ask for the temperature, hardness, and flow of the shop's scarlet badis tank, because matching your home water to the water the fish already knows is the gentlest start you can give it. Scarlet badis come from slow, heavily planted streams and prefer a quiet tank without strong current. Ask what plants and hiding places the shop keeps them with, and copy that structure: a badis with no cave or dense planting to retreat into will spend its days stressed and invisible. Also ask what tankmates the shop would rule out — fast, greedy feeders will starve a slow, deliberate hunter without ever touching it.
Ask what happens if the fish will not eat at home
Ask about the shop's aftercare before money changes hands: if the scarlet badis refuses food at home, can you call for advice, and what would they suggest trying first? Ask what frozen and live foods they stock routinely, because your fish's dinner depends on that supply chain every week. A shop that quizzes you back — about your tank's size, its maturity, its current residents — is showing you it cares where the fish lands. When you find that shop, hold onto it: KinsLe Pet Services Directory is where you keep that connection to a trusted local fish shop that knows your scarlet badis and its habits.