Flounder (Limanda Aspera).
Keep frozen. Thawing Instructions: Refrigerated Thawing: Remove all packaging. Place fillets in a covered dish and thaw in refrigerator overnight. Rapid Thawing: Remove all packaging. Place fillets in a resealable bag and thaw under cold running water for approximately 15-20 minutes. Do not refreeze.
Always refer to the actual package for the most accurate information