diff --git a/backend/prisma/seed.ts b/backend/prisma/seed.ts
index ab9b4dc..c1964a4 100644
--- a/backend/prisma/seed.ts
+++ b/backend/prisma/seed.ts
@@ -288,8 +288,6 @@ async function main() {
     // DEMO BATCHES
     // ============================================
     const owner = await prisma.user.findUnique({ where: { email: ownerEmail } });
-    const flowerRoom = await prisma.facilityRoom.findFirst({ where: { code: 'FLO' } });
-    const vegRoom = await prisma.facilityRoom.findFirst({ where: { code: 'VEG' } });
 
     const demoBatches = [
         {
@@ -299,8 +297,7 @@ async function main() {
             status: 'ACTIVE',
             plantCount: 48,
             source: 'CLONE',
-            stage: 'FLOWERING',
-            roomId: flowerRoom?.id
+            stage: 'FLOWERING'
         },
         {
             name: 'B-2025-12-KM',
@@ -319,8 +316,7 @@ async function main() {
             status: 'ACTIVE',
             plantCount: 24,
             source: 'SEED',
-            stage: 'VEGETATIVE',
-            roomId: vegRoom?.id
+            stage: 'VEGETATIVE'
         }
     ];