Central Thai and coastal Thai — fish green curry is common throughout Thailand's coastal regions
Fish green curry requires a different technique than the standard chicken version — the delicacy of fresh fish demands shorter cooking times, earlier attention to seasoning, and careful management of the coconut milk addition to avoid curdling around the protein. The best fish for green curry are firm-fleshed varieties (snapper, barramundi, kingfish, or wild-caught trout) cut into large medallions rather than fillets, as they hold shape better through the curry heat. The paste frying and coconut cracking proceed identically to chicken green curry, but the fish is added in the last 5 minutes of cooking and the wok is removed from heat while there is still some residual pink in the thickest part — carryover heat completes the cooking.
Fish green curry achieves a lighter, more delicate version of the curry's flavour profile than chicken — the clean, marine sweetness of good snapper against the bright herbal paste creates a more refined result than poultry-based curries.
{"Firm-fleshed fish only — delicate flatfish, cod, or tilapia will fall apart","Fish added in the last 4–5 minutes of cooking: this is not negotiable","Do not stir after adding fish — use a spooning motion to baste rather than stir, which breaks the flesh","Season the curry base completely before adding fish — adjusting seasoning around cooked fish requires more movement","The curry should be slightly thinner for fish than for chicken — the fish juices will release into the sauce"}
For premium service, use whole fish steaks (cross-cut with bone) rather than fillets — the bone helps hold the flesh together during cooking and releases gelatin into the curry that gives the sauce a silkier mouthfeel than boneless fish alone.
{"Adding fish too early — it overcooks and falls apart in the curry","Stirring vigorously after adding fish — breaks the flesh","Using pre-sliced thin fish fillets — they overcook in 90 seconds and have no textural presence","Under-seasoning the paste stage — fish proteins are very bland and need a properly seasoned base"}