Are household pets such as cats and dogs considered koi predators? Yes 66% No 33% Get Free Quotes Today! Question: Are household pets such as cats and dogs considered koi predators? Top Answer (66% of 6 votes): Yes. Answer: No Explanation: Some cats will eat fish but not very often Timeless Ponds & Fountains Answer: Yes Explanation: They can be if not properly trained. Some species of dogs are hunters as well as cats are La Rose Home Repair Get Free Quotes Today! Find Local Pros Free Pond Installation Cost Estimates Related Questions How Much Does It Cost to Put in a Koi Pond? What is a Stock Pond? What is a Retention Pond? Would you recommend hiring a Certified Aquascape Contractor (CAC) to build a pond?Top answer: Somewhat important Are herons considered a koi predator?Top answer: Yes