A 5kg sack of the quite simply wonderful Hikari Gold, medium pellet size. This food is sold as Koi food and is excellent for these fish but is also amazingly good  for Goldfish. An ocassional feed to singletails will benefit them greatly and there is nothing as good to fill out the bodies of twintails to give them the chunky, deep shape they should have. Ideal when soaked and kneaded to a paste for growing fry on and also fed as a paste or dry to breeders to bring on spawning condition. Superb!