Here are Australian-available pet-food brands that offer formulas that avoid common fillers such as wheat and corn (notes summarise typical product lines—always check the specific product ingredient list on pack or the brand website before buying):

• Black Hawk (Australian brand) — offers a Grain Free range labelled “no wheat, corn, barley or rice.” (dry and wet grain‑free recipes). (blackhawkpetcare.com.au)

• Ivory Coat (Australian brand) — sells Grain Free recipes and states “no added wheat, corn, rice or soy” on their grain‑free products. (ivorycoat.com.au)

• K9 Natural (New Zealand brand widely sold in Australia) — freeze‑dried / canned / dry lines described as grain‑free and explicitly list “no wheat, corn, soy, cereals … or fillers.” (myrainbowpets.com.au)

• Ziwi Peak (New Zealand brand sold in Australia) — air‑dried and canned products based mainly on meat/organs; marketed as 100% grain‑free (no wheat, corn, rice, potatoes or other cheap fillers). (ziwipetfood.com.au)

Quick guidance when choosing:

• “Grain‑free” usually excludes common grains (wheat, corn, rice) but check the ingredient panel for other fillers/pulse ingredients (peas, potato, chickpeas, tapioca) that some owners also want to avoid. (ziwipetfood.com.au)
• If your pet has a diagnosed allergy/sensitivity, consider limited‑ingredient, single‑protein formulas or discuss an elimination trial with your vet.
• Ingredient lists and formulations change — always verify the current ingredient statement on the brand’s official product page or the product label before purchasing. (blackhawkpetcare.com.au)

If you’d like, I can:

• look up grain‑free product links or ingredient panels for a particular size/recipe, or
• provide a short checklist to help you read ingredient lists for fillers and common allergens. Which would help more?