Frogspawn is the eggs of a frog that are surrounded by a transparent jelly. Koi, and other pond fish like goldfish, will eat these frog eggs if they're available. Frogspawn is harmless to your fish, so it's up to you if you want to move the frogspawn to a wildlife pond or leave them where they are.

Will my fish eat tadpoles?

Most fish will eat tadpoles. In a pond, fish are the dominant species and will eat almost anything. Fish that eat tadpoles includes regular pond fish such as koi and goldfish.

What is eating my Frogspawn?

Dragonfly larva, water boatmen, birds and snakes are all known to eat frogspawn.