Aquarists looking to keep more than one common goldfish in an aquarium should consider adding 10 gallons of water for every additional fish. Tank ConditionsĬommon goldfish tanks should be at least 20 gallons in size. Outdoor ponds should be at least four feet deep to avoid freezing completely, allowing captive goldfish to survive harsher temperatures. In their natural habitat of lakes and ponds, the water is deep enough for the fish to hibernate at the bottom and avoid freezing in the winter. Aquarists can influence activity by controlling the lighting in the tank. However, common goldfish will become less active when their tank is dimly lit, regardless of the time of day. They are fast swimmers, rarely gather in one area of the tank, and will often linger at the surface of the tank if the oxygen levels in the water are low. You should provide common goldfish with plants, caves, and hiding spaces to keep them happy and healthy.Ĭommon goldfish don’t have regular sleeping patterns and are active during the day and at night. Look out for the following signs of stress:Ĭommon goldfish like to explore their environment. Fish living in aquariums without sufficient resources and hiding places will become distressed and sick. You should feed these fish two or three times per day to avoid conflict.Ĭompetition can stress common goldfish. In this way you only rarely have to change the water, and even then, you only need to do partial changes.Common goldfish are rarely aggressive, but they will fight for food if the fish are underfed. The most aesthetically pleasing way to keep goldfish is to use at least a 20 gallon aquarium equipped with aquarium filters and pumps for oxygenating the water and filtering out wastes. If you maintain a large enough aquarium to accommodate several goldfish, you can enjoy watching your goldfish exhibit schooling behavior. Goldfish and other carp are gregarious in nature, meaning they travel in schools. It’s important, therefore, not to overfeed goldfish. This can kill them as their digestive system can become compacted if they eat too much. They eat both plants and small invertebrate animals.īecause they’re opportunistic feeders in nature, it’s natural for them to keep eating as long as food is available.ĭomesticated goldfish retain this trait so they have a tendency to continue eating as long as there’s food in the tank. This means they eat whatever they can and whenever the opportunity arises. In nature all carp are opportunistic omnivores. This is the reason most people invest in a good filtration system.įeeding goldfish can be trickier than you think. If you don’t change the water frequently and don’t have a good filtration system, the water becomes oxygen depleted and your goldfish will suffer or even die. You really don’t even need aquarium filters and pumps but if you don’t you have to be careful to change the water frequently. In fact all you really need to start off is a small fish tank and some fish food especially formulated for goldfish. Goldfish care is relatively easy compared to other domesticated fish. All of these various goldfish varieties are still the same species even though they may look very different. Other color variations include the Jet Black Moor goldfish with telescopic eyes and Pearlscale goldfish with long lines of beautiful pearl-colored spots. These types include the popular Fantail goldfish, Shubunkin, Bubble Eye goldfish, and the interesting Celestial Eye goldfish with telescopic bug eyes and a double tail. The Chinese began to ‘select’ the orange colored carp when rearing these fish and this is how we came to have the domesticated gold carp, now commonly called goldfish.Īpart from color, other traits have been selected over the decades and we now have more than 120 varieties of goldfish. However a color mutation ranging from yellow to orange-red occurs naturally in carp populations. This is because they are bottom dwelling fish and these dull colors enable them to blend into the environment to escape predators or to hide from their prey. Most carp are dull colors like tan, brown, and grey. Will Goldfish Survive Winter in an Above Ground Pool.7 step guide to building a backyard pond.25 types of goldfish – pictures, care, detail.Green Malachite Treatment for White Spot.Goldfish lays on the bottom of the tank.Flukes Treatment, Diagnosis, Prevention.What’s your goldfish trying to tell you?.
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