I think thats what its called they look like golfballs. We sell some at my job and was wondering what the tank requirements are for these. I have yet to see any get big like the other fancys.
Just like many other types of Goldfish the Pearlscale Goldfish grows relatively large and requires at least 10 gallons of water if you want to keep it in an aquarium.You can also keep it in a pond. The more room, the better, and your Pearlscale Goldfish will most likely do much better if you provide it with more room than the 10 gallons which should be considered an absolute minimum. You can house your Pearlscale Goldfish with other goldfish varieties as long as they are not to fast, since fast fishes may snatch away all the food and leave the Pearlscale Goldfish starving. Comet goldfish, Waking Goldfish and Shubunkin Goldfish are all examples of fast fishes that are unsuitable company for a Pearlscale Goldfish. Keep in mind that the Pearlscale Goldfish is big and egg-shaped and not really suited for fast-swimming. You have to handle your Pearlscale Goldfish very carefully, since the scales can fall off from rough treatment or sharp objects in the aquarium or pond. Breeding damage can also cause the scales to drop from the fish. If a scale falls from the Pearlscale Goldfish, it will not be replaced by a similar scale. Instead, you will see the common flat scale found on all other types of goldfish. Some breeders claim that the Pearlscale Goldfish needs more calcium in the water than other goldfishes, to keep the scales intact. This is however yet to be proven.