HoYoLAB interactive map
Search the material or enemy name, then enable its markers. Choose the matching region and surface or underground layer.
Fish The Catch and Its RefinementsExchange at Kujirai Momiji’s Fishing Association stall in Inazuma. Koi appear at several Teyvat fishing spots; Raimei Angelfish are caught at the Tatarasuna shipwreck area.
Search the material or enemy name, then enable its markers. Choose the matching region and surface or underground layer.
Fish The Catch and Its RefinementsThe Catch itself is a one-time purchase; four vessels are separate purchases for full refinement. Fish pools replenish after a cooldown, with timing shown by game state.
Stop when you have bought the desired weapon and number of vessels; do not continue fishing for refinement fish after the target is met.
Open a guide to find other locations and see what the item is used for.