diff --git a/Classes/Command/SequenceCommandController.php b/Classes/Command/SequenceCommandController.php
index 47e388b..d91a6aa 100644
--- a/Classes/Command/SequenceCommandController.php
+++ b/Classes/Command/SequenceCommandController.php
@@ -4,7 +4,9 @@ declare(strict_types=1);
 
 namespace DigiComp\Sequence\Command;
 
+use DigiComp\Sequence\Domain\Model\Insert;
 use DigiComp\Sequence\Service\SequenceGenerator;
+use Doctrine\ORM\EntityManagerInterface;
 use Neos\Flow\Annotations as Flow;
 use Neos\Flow\Cli\CommandController;
 
@@ -21,6 +23,12 @@ class SequenceCommandController extends CommandController
      */
     protected $sequenceGenerator;
 
+    /**
+     * @Flow\Inject
+     * @var EntityManagerInterface
+     */
+    protected $entityManager;
+
     /**
      * Sets minimum number for sequence generator
      *
@@ -32,5 +40,28 @@ class SequenceCommandController extends CommandController
         $this->sequenceGenerator->advanceTo($to, $type);
     }
 
-    // TODO: make clean up job to delete all but the biggest number to save resources
+    /**
+     * @param string[] $typesToClean
+     */
+    public function cleanSequenceInsertsCommand(array $typesToClean = [])
+    {
+        $cleanArray = [];
+        if (empty($typesToClean)) {
+            $results = $this->entityManager
+                ->createQuery('SELECT i.type, MAX(i.number) max_number FROM ' . Insert::class . ' i GROUP BY i.type')
+                ->getScalarResult();
+            foreach ($results as $result) {
+                $cleanArray[$result['type']] = (int) $result['max_number'];
+            }
+        } else {
+            foreach ($typesToClean as $typeToClean) {
+                $cleanArray[$typeToClean] = $this->sequenceGenerator->getLastNumberFor($typeToClean);
+            }
+        }
+        foreach ($cleanArray as $typeToClean => $number) {
+            $this->entityManager
+                ->createQuery('DELETE FROM ' . Insert::class . ' i WHERE i.type = ?0 AND i.number < ?1')
+                ->execute([$typeToClean, $number]);
+        }
+    }
 }