Glofish 70 gobies 260–261 breeding 230, 231 suckerlike device 261 goldfish 74, 332–343 breeding 326, 327, 328, 341 designing ponds for 300 diseases 324 feeding 316, 337 hand-stripping 326 indoor tanks 312, 313 origins and ancestry 22, 334 pigmentation and sheen 333 scales 16
Fish are susceptible to a wide range of bacterial, viral, fungal, and parasitic diseases. The artificial conditions in the aquarium tend to concentrate the risk of disease and increase the speed at which illnesses spread, because fish health is strongly influenced by the quality of the environment. Early intervention can head off many of the most common conditions, but, as with humans, prevention is always better than cure.
