Reptile enthusiast Brian Balchik has passed away at the age of 54 after a courageous battle with pancreatic cancer, the Reptile Zoo announced Monday.

Balchik spent his last 10 days in hospice care and shared a touching farewell video with fans just days before his death. His death was confirmed in a story shared on Instagram. reptarium reptile zoo.

They called Balchik an “extraordinary” person and praised his ability to impact the lives of many fans with his passion and adoration for the welfare of reptiles and all forms of wildlife.

“I'm so grateful to you all. It's been an amazing journey,” Barsik wrote in a touching video he recorded before his death.

“[It] changed my life. Incredibly, each and every one of you has changed my life,” he said as he recorded his final farewell from hospice care.

He shared a video reel of his life and journey, including his battle with chemotherapy, clips from his appearances on various shows with reptiles and animals, and snippets of his career forever captured through his lens.

“Brian's absence leaves an immeasurable void for those of us who had the privilege of working with him,” Reptarium Reptile Zoo said in a statement. “As we move through this difficult time, we take solace in the memory and eternal light of Brian's work. He will be greatly missed but never forgotten.”

Balchik was diagnosed with stage 4 pancreatic cancer a year before his death.

He is best known for his appearance on Discovery Channel's “Venom Hunters” and for his widely shared YouTube videos. He has amassed a staggering 5.26 subscribers on his YouTube alone and is also known for collaborating with YouTube giants Logan and Jake Paul.

This passionate reptile expert was also the founder of Legacea Aquarium and the third largest collector of snakes in the world. Barcyzk owned over 30,000 snakes as part of his personal collection. (Related: Harrison Ford has a snake named after him)

Balchik is survived by his wife, Lori, and their children, Noah and Jade.

His family will host a memorial service for him Wednesday in Sterling Heights, Michigan, the zoo said in a statement.