diff --git a/backend/endpoints.py b/backend/endpoints.py
index 0e177a0..b34f67c 100644
--- a/backend/endpoints.py
+++ b/backend/endpoints.py
@@ -156,9 +156,19 @@ def send_bloom():
     if type_check_error is not None:
         return type_check_error
 
+    content = request.json["content"]
+    if len(content) > 280:
+        return make_response(
+            {
+                "success": False,
+                "message": f"Bloom must be at most {280} characters long",
+            },
+            400,
+        )   
+
     user = get_current_user()
 
-    blooms.add_bloom(sender=user, content=request.json["content"])
+    blooms.add_bloom(sender=user, content=content) 
 
     return jsonify(
         {