Yes, a bullfrog can eat koi, especially if the koi are small enough to fit in the bullfrog's mouth. Bullfrogs are opportunistic predators and will consume a variety of prey, including fish. If bullfrogs are present in your pond, it's important to monitor their population to protect your koi. However, larger koi are generally safe from being eaten by adult bullfrogs.
If they are bullfrog tadpoles, usually yes
no they eat flies
yes
Nope they sometimes eat there eggs
yes they will
several ranges of pesticides
koi fish would normally eat goldfish food try tetra fin goldfish flakes they are made for goldfish and koi
Yes according to my Math book is says Mexicans and Asians eat it around 1:40 a.m. !
Yes koi fish can eat bannannas but only in very little pieces. koi fish can actually eat any type of good comon fruit. the only fruit that i know that they can not eat is grape fruit.
It depends how big your Koi is and how big the Catfish is. If the catfish can fit in the Koi's mouth than it will get eaten.
no
Any other animal that is smaller than them.