diff --git a/htdocs/core/modules/societe/mod_codecompta_aquarium.php b/htdocs/core/modules/societe/mod_codecompta_aquarium.php
index bdc5f901ec8..5bcf3c0f929 100644
--- a/htdocs/core/modules/societe/mod_codecompta_aquarium.php
+++ b/htdocs/core/modules/societe/mod_codecompta_aquarium.php
@@ -74,7 +74,9 @@ class mod_codecompta_aquarium extends ModeleAccountancyCode
 		$texte.= '<table class="nobordernopadding" width="100%">';
 		$s1= $form->textwithpicto('<input type="text" class="flat" size="4" name="value1" value="'.$conf->global->COMPANY_AQUARIUM_MASK_SUPPLIER.'">',$tooltip,1,1);
 		$s2= $form->textwithpicto('<input type="text" class="flat" size="4" name="value2" value="'.$conf->global->COMPANY_AQUARIUM_MASK_CUSTOMER.'">',$tooltip,1,1);
-		$texte.= '<tr><td>'.$langs->trans("ModuleCompanyCode".$this->name,$s1,$s2)."<br>\n";
+		$texte.= '<tr><td>';
+		$texte.=$langs->trans("ModuleCompanyCodeCustomer".$this->name,$s2)."<br>\n";
+		$texte.=$langs->trans("ModuleCompanyCodeSupplier".$this->name,$s1)."<br>\n";
 		$texte.= '</td>';
 		$texte.= '<td align="left">&nbsp; <input type="submit" class="button" value="'.$langs->trans("Modify").'" name="Button"></td>';
         $texte.= '</tr></table>';
@@ -93,7 +95,11 @@ class mod_codecompta_aquarium extends ModeleAccountancyCode
 	 */
 	function getExample($langs,$objsoc=0,$type=-1)
 	{
-	    return $this->prefixsupplieraccountancycode.'SUPPCODE'."<br>\n".$this->prefixcustomeraccountancycode.'CUSTCODE';
+		$s='';
+		$s.=$this->prefixcustomeraccountancycode.'CUSTCODE';
+	    $s.="<br>\n";
+	    $s.=$this->prefixsupplieraccountancycode.'SUPPCODE';
+	    return $s;
 	}
 
 
@@ -107,24 +113,43 @@ class mod_codecompta_aquarium extends ModeleAccountancyCode
 	 */
 	function get_code($db, $societe, $type='')
 	{
+		global $conf;
+
 		$i = 0;
 		$this->db = $db;
 
 		dol_syslog("mod_codecompta_aquarium::get_code search code for type=".$type." company=".(! empty($societe->name)?$societe->name:''));
 
 		// Regle gestion compte compta
-		$codetouse='';
 		if ($type == 'customer')
 		{
-			$codetouse = $this->prefixcustomeraccountancycode;
-			$codetouse.= (! empty($societe->code_client)?$societe->code_client:'CUSTCODE');
+			$codetouse=(! empty($societe->code_client)?$societe->code_client:'CUSTCODE');
+			$prefix = $this->prefixcustomeraccountancycode;
 		}
 		else if ($type == 'supplier')
 		{
-			$codetouse = $this->prefixsupplieraccountancycode;
-			$codetouse.= (! empty($societe->code_fournisseur)?$societe->code_fournisseur:'SUPPCODE');
+			$codetouse=(! empty($societe->code_fournisseur)?$societe->code_fournisseur:'SUPPCODE');
+			$prefix = $this->prefixsupplieraccountancycode;
 		}
-		$codetouse=strtoupper(preg_replace('/([^a-z0-9])/i','',$codetouse));
+		else
+		{
+			$this->error = 'Bad value for parameter type';
+			return -1;
+		}
+
+		//$conf->global->COMPANY_AQUARIUM_CLEAN_REGEX='^..(..)..';
+
+		// Remove special char if COMPANY_AQUARIUM_REMOVE_SPECIAL is set to 1 or not set (default)
+		if (! isset($conf->global->COMPANY_AQUARIUM_REMOVE_SPECIAL) || ! empty($conf->global->COMPANY_AQUARIUM_REMOVE_SPECIAL)) $codetouse=preg_replace('/([^a-z0-9])/i','',$codetouse);
+		// Remove special alpha if COMPANY_AQUARIUM_REMOVE_ALPHA is set to 1
+		if (! empty($conf->global->COMPANY_AQUARIUM_REMOVE_ALPHA))   $codetouse=preg_replace('/([a-z])/i','',$codetouse);
+		// Apply a regex replacement pattern if COMPANY_AQUARIUM_REMOVE_ALPHA is set to 1
+		if (! empty($conf->global->COMPANY_AQUARIUM_CLEAN_REGEX))	// Example: $conf->global->COMPANY_AQUARIUM_CLEAN_REGEX='^..(..)..';
+		{
+			$codetouse=preg_replace('/'.$conf->global->COMPANY_AQUARIUM_CLEAN_REGEX.'/','\1\2\3',$codetouse);
+		}
+
+		$codetouse=$prefix.strtoupper($codetouse);
 
 		$is_dispo = $this->verif($db, $codetouse, $societe, $type);
 		if (! $is_dispo)
diff --git a/htdocs/langs/en_US/admin.lang b/htdocs/langs/en_US/admin.lang
index f2c1f0e8f96..5544991959d 100644
--- a/htdocs/langs/en_US/admin.lang
+++ b/htdocs/langs/en_US/admin.lang
@@ -446,7 +446,8 @@ DisplayCompanyInfo=Display company address
 DisplayCompanyManagers=Display manager names
 DisplayCompanyInfoAndManagers=Display company address and manager names
 EnableAndSetupModuleCron=If you want to have this recurring invoice beeing generated automatically, module *%s* must be enabled and correctly setup. Otherwise, generation of invoices must be done manually from this template with button *Create*. Note that even if you enabled automatic generation, you can still safely launch manual generation. Duplicates generation for same period are not possible. 
-ModuleCompanyCodeAquarium=Return an accounting code built by:<br>%s followed by third party supplier code for a supplier accounting code,<br>%s followed by third party customer code for a customer accounting code.
+ModuleCompanyCodeCustomerAquarium=%s followed by third party customer code for a customer accounting code
+ModuleCompanyCodeSupplierAquarium=%s followed by third party supplier code for a supplier accounting code
 ModuleCompanyCodePanicum=Return an empty accounting code.
 ModuleCompanyCodeDigitaria=Accounting code depends on third party code. The code is composed of the character "C" in the first position followed by the first 5 characters of the third party code.  
 Use3StepsApproval=By default, Purchase Orders need to be created and approved by 2 different users (one step/user to create and one step/user to approve. Note that if user has both permission to create and approve, one step/user will be enough). You can ask with this option to introduce a third step/user approval, if amount is higher than a dedicated value (so 3 steps will be necessary: 1=validation, 2=first approval and 3=second approval if amount is enough).<br>Set this to empty if one approval (2 steps) is enough, set it to a very low value (0.1) if a second approval (3 steps) is always required.