diff --git a/mysql_red.py b/mysql_red.py
index acc6161..35af34c 100644
--- a/mysql_red.py
+++ b/mysql_red.py
@@ -6,6 +6,9 @@ except ImportError:
 
 class MYSQL_RED:
 	
+	#Save mysqldb-connection as class attribute to use only one in descendant classes
+	connection = False
+	
 	def __init__( self, db_hostname, db_username, db_password, db_name ):
 		"""
 		Opens a connection to MySQL-DB
@@ -13,11 +16,14 @@ class MYSQL_RED:
 		@returns 	mysql-stream	MySQL Connection
 		"""
 		
-		self.__connection = mysqldb.connect( host=db_hostname, user=db_username, passwd=db_password, db=db_name )
+		# Connect to mysqldb only once
+		if( type( self ).connection == False ):
+			
+			type( self ).connection = mysqldb.connect( host=db_hostname, user=db_username, passwd=db_password, db=db_name )
 		
-	def close( self ):
+	def __del__( self ):
 		"""
-		Before deleting instance, close connection to MySQL-DB
+		Before deleting class, close connection to MySQL-DB
 		"""
 		
-		self.__connection.close()
+		type( self ).connection.close()