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Care must also be taken when adding water, as the new water may be of a different temperature. Temperatures under about 10 °C (50 °F) are dangerous to fancy varieties, though commons and comets can survive slightly lower temperatures. Extremely high temperatures (over 30 °C (86 °F)) can also harm goldfish.
Treated tap water at the same temperature as the tank water should be used to refill the tank. It is important to avoid using tap water to clean decorations, filters, and equipment as it can kill good bacteria. Goldfish require adequate exposure to light to promote healthy sleeping patterns and maintain a similar environment to their natural ...
It supports double anal and tail fins. The anal and caudal fins are well divided into two matching halves. Although generally considered a hardy goldfish, Fantails can be sensitive to prolonged exposure to low water temperatures. Keeping Fantails in an aquarium requires an ideal temperature of 73 to 74 °F (23 °C) [2]
Temperature range pH range Water Hardness Bristlenose pleco, bushynose pleco: Ancistrus spp. The bristlenose genus has at least 59 identified species and many others yet to be named. [16] Males and female both have long "bristles" on their nose, the males having distinctly longer ones. 72-84 F (20-27 C) Adonis pleco, polka dot lyre-tail pleco
Orandas are sensitive to low water temperatures and can be kept with other goldfish. [2] If their wen grows too much, it may hinder vision, so it is advised to keep them with other goldfish with similarly poor vision in order to make sure that they do not starve because of the able-sighted competition.
Cool-water species, such as smallmouth bass and walleye, can tolerate a wide range of temperatures, but tend to be most abundant in cooler rivers or deeper parts of ponds and lakes, where the temperature is slightly lower than room temperatures. Cold-water species, such as salmonids (e.g. salmon, trout, char, graylings, freshwater whitefishes ...
Living for up to two years, these spiral-shaped snails, which sometimes have black spots, will feel right at home in hard water, with a pH level between 6.5 and 8.5 and a temperature between 65 ...
Although many enthusiasts consider goldfish to be "cold-water" fishes, celestials are also somewhat more sensitive to temperature fluctuations, preferring their water to remain in the lower to mid-70s °F (i.e., between 21 °C and 23.89 °C).