Tarek El Moussa is showing support for a "Flip or Flop" contractor with cancer.

The 35-year-old television personality united with ex-wife and co-star Christina El Moussa this week to raise funds for contractor Frank Miller as he battles two forms of "aggressive" cancer.

"Our contractor Frank Miller from 'Flip or Flop' is battling 2 very very aggressive cancers, really bad ones, he's fighting for his life out of feeding tubes! His medical bills have become unattainable and we need your help to try and save Frank's life," Tarek wrote Tuesday on Instagram.

"We love him so much that Christina and I are donating $5,000.00 to his go fund me account to start it," he told his followers.

"Please donate something anything to help this amazing man stay alive. FRANK WE [love] you so much buddy."

Friends and fans had helped raise over $17,000 of a $50,000 goal as of Wednesday morning. Alison Diaz, who started the Go Fund Me page, thanked supporters in an update this week.

"You all have no idea how wonderful you are to help Frank fight his battle. I'm overwhelmed with the amount of responses and thank each and everyone of you on behalf of Frank. It's people like you that make a Beautiful difference in this world," she wrote.

Tarek and Christina recently started production on a seventh season of "Flip or Flop."

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The pair confirmed in April that they will continue to co-star on the HGTV series despite splitting in December after seven years of marriage.

"Tarek and I have been working together for a long time, and we look forward to continuing to work together on 'Flip or Flop,'" Christina said in a statement.

"From the beginning, HGTV has shown Christina and me tremendous support, and we are excited to go out there and flip many more houses for 'Flip or Flop,'" Tarek added.