Ryukin is another breeding form of goldfish. It is believed that this breed was imported to Japan around the sixteenth century from the Ryukyu archipelago or in another reading Ryukyu. To what the fish owes its name.
Demekin goldfish
Demekin goldfish is another original form of Goldfish, obtained by artificial selection. Many generations of fish breeders have worked hard to obtain such a fish, as well as to fix the changes at the genetic level.
Veiltail
The Veiltail is native to Japan (Yokohama). In its homeland, it was only available to a select few. Then two pairs of this fish were presented to Rear Admiral Daniel Ammen of the United States Navy. And from there it spread all over the world.
Comet fish
The Comet fish is one of the earliest breeding forms of Goldfish. Some authors indicate that this breed of Goldfish was obtained in America in the 1800’s. Other authors indicate that these fish were imported to America around the same time from Japan.
Mollinesia sailing
Mollinesia sailing is distributed in fresh and brackish waters of the Yucatan Island (Mexico). In Europe they have been known since 1913. In the Soviet Union they were distributed until 1941. Re-imported into the USSR in 1950.
Black mollinesia
Black mollinesia is a viviparous aquarium fish with a peaceful disposition and original appearance. The simplicity of keeping this fish make it desirable in the general aquarium.
How to reduce water hardness at home?
The need to reduce water hardness in the aquarium arises quite often. For example, if you decide to achieve spawning from neon, it is almost impossible to do it in hard water. Therefore, we will devote some time to available at home methods of reducing water hardness.
Find out water hardness at home
What is water hardness, what types of hardness there are and what units are used to measure it, we analyzed in the previous article “Water Hardness”. Now we have to figure out how to find out the hardness of water at home. And choose from the existing methods of the most suitable for us.
Water hardness
One of the most important properties of water for living organisms is its hardness. For the general aquarium and for the simple keeping of most fish, this property of water can be varied within fairly wide limits without harm. But as you get deeper into aquaristics without knowledge of the basic physical and chemical properties of water and without the ability to determine and change them – can not do without.