Can I replace the tapioca with arrowroot flour? I have …

Name: Gluten-Free Sourdough Without Psyllium
Prep time: 15 min
Cook time: PT-479656H41M37S
Total time: PT-479656H41M37S
Cuisine: Gluten-Free
Ingredients: 1-1/2 cups sorghum flour; 1 cup tiger nut flour; 1 cup tapioca flour; 1 tablespoon coconut palm sugar; 1/2 tablespoon fine grey sea salt (up to 3/4 tablespoon); 1 cup active brown rice starter; 1-1/4 cup (up to 1-1/2 cups) filtered or spring water (room temp. or warm); 1 cup brown rice flour; 1/2 cup white rice flour; 1 cup tiger nut flour; 1 cup tapioca flour; 1 tablespoon coconut palm sugar; 1/2 tablespoon fine grey sea salt (up to 3/4 tablespoon); 1 cup active brown rice starter; 1-1/4 cup (up to 1-1/2 cups) filtered or spring water (room temp. or warm)