Show Related Terms Block Not Nodes
As your requirement is to create a block that will show Black Setter on the White Setter page and vica versa, there is another simple way to achieve this.  The function taxonomy_get_related() will do this. 

Create a block with input format as php and use above function to print related terms by passing current page term id. Then assign the block to particular region. The following snippet will works,

for eg:

 &lt;?php
    $termid = arg(2);
    $terms = taxonomy_get_related($termid, $key = 'tid');
    //print_r($terms);
    foreach($terms as $term){

       $link = url('taxonomy/term/'.$term-&gt;tid);
       echo '&lt;a href="'.$link.'"&gt;'.$term-&gt;name.'&lt;/a&gt;';
     }
  ?&gt;