Code to show a video (using custom fields) on custom post

Hi,

We’re using Custom Fields to create a custom-styled post. Very simple, just a few images, description and…. one video. This is the part causing me problems.

The custom field type used for uploading videos is the wysiwyg editor. Field is called “pet_video”. This behind the scenes all works just fine.

However, the video is not showing up on the post. I realise I need some code to go into the custom posts php (called “single_pet.php”), but everything I have tried results in nothing good!

The images show perfectly using this simple bit of code:

<div class="single_pet_image">
         <?php $attachment_id = get_field('pet_image_3'); $size = "medium"; // (thumbnail, medium, large, full or custom size)?>
         <?php echo wp_get_attachment_image( $attachment_id, $size );?>
</div>

How can I get the video to show as well?
Thank you for any help.