Koi Fish Carp stockimages free to use

Having more than 100 fish is a challange constantly making shure the water stays fresh this is a freshwatertank after all hahah everyday I observe for about half an houer to an houer how the fishes are

I should start and nomber those aquarium videos since I post about this exact tank ever since the setup, and this on hive only of course ;) Fishes are doing amazong! maybe you remember the fish drama I