J&K Aquatics
Goldfish 4-5cm
SKU C001
RRP £0.00
Easy to keep, perfect for beginners.
Suitable for ponds or aquariums.
World's most popular pet fish !
Easy to keep, perfect for beginners.
Suitable for ponds or aquariums.
World's most popular pet fish !
Goldfish are the world's most popular pet fish. They can be kept in both ponds and aquariums with ease as long as the appropriate care is taken. Like other ornamental varieties, the Goldfish has been bred in many different, attractive, and mixed colour forms. With the common Goldfish, their body size and shape is usually well proportioned with a short tail. They can grow to around 20 to 25cm in length (excluding the tails) although this does depend on habitat size, feeding and general husbandry.
There is an endless list of different varieties of Goldfish available. Common, Comet, and Shubunkin are the most common varieties suitable for both ponds and aquariums. Oranda, Fantail, Ryukin, Lionhead are amongst a long list of fancy types which are recommended for indoor aquariums only.
Goldfish are also found in quite a mix of colours too including gold, red, yellow, white, black, orange, silver and brown.
Consumer guidance:
Make sure you give Goldfish plenty of space in both ponds and aquariums. Being a coldwater fish, they require more oxygen so do not over stock these species. Stocking density is defined by the surface area (oxygen intake capability), not the total water volume.
Ponds:
• In outdoor ponds, (based on a correctly filtered set up) it is recommended that you do not stock more than 15cm of fish (not including the fish’s tail) per 1800cm² of surface area. With large fish, which consume more oxygen, we recommend that this figure is lower.
Aquariums:
• For indoor aquariums, it is advisable not stock more than 1cm of fish (excluding tail) per 120cm² water surface area of the aquarium. For example a 60 x 30cm aquarium should not contain any more than 15cm of Goldfish. Using this method will enhance the wellbeing of the fish and make the whole fish keeping experience easier and more enjoyable.
It is best to feed Goldfish varieties either floating or slow sinking pellets/sticks as their staple diet. For indoor fancy varieties, flake should ideally be avoided (except for the smallest fish) as they can draw in too much air during feeding which can lead to swimbladder issues.
These are possibly the hardiest of pet fish but do not abuse or neglect them, they are more than ‘just a Goldfish’ !!!
Common name(s): Goldfish
Scientific name: Carassius auratus
Other names: none
Native habitat:
Originally a captive bred, domesticated form of small wild Carp from Southern China. This fish is similar to the European Crucian Carp and is now found all over the world in a variety of habitats.
Potential lifespan:
• 10-20 years
Maximum size (approx.):
• 20 to 25cm, sometimes larger (excluding the tails)
Degree of difficulty to keep:
• Easy, perfect for beginners.
Swimming level: all areas.
• All areas.
Breeding:
Egg scatterer.
Sex:
• Only noticeable during breeding.
• Adult females are fuller bodied.
• Adult males exhibit breeding nodules on pectoral fins & gill plates.
Temperature:
• Can tolerate temperatures from 2 to 32°c.
Water parameters:
• pH from 6 to 8,
• Hardness 5 to 20°dGH.
Feeding:
• Floating or slow sinking pellets/sticks as their staple diet,
• Frozen bloodworms and daphnia are excellent for a treat.
• Flake food for small fish.
Minimum recommended pond size:
• 150 litres.
Minimum recommended aquarium size:
• 60cm long, 54 litres for small fish.
• 100cm/200L for larger specimens.
Cohabitation:
• Suitable to keep with all other Goldfish varieties and similar sized non-predatory pond fish. If kept with bigger fish such as Koi, take extra care to make sure they get their fair share of food too.
• Indoor aquariums, keep with other similar Goldfish varieties too, Minnows, temperate tropical species and coldwater algae eaters.
• Avoid keeping with fancy Goldfish varieties as they are likely to outcompete them for food. They may also ‘harass’ them from time to time (thinking its breeding season, but not bullying).
Other tips and information:
• Decorate the aquarium with fine gravel or sand along with rocks, stones, wood, and other ornaments of choice.
• Plastic, silk, or other artificial plants look great in these aquariums.
• Live plants can used but they are prone to getting eaten. Java Fern is worth a try though, it is supposedly distasteful to fish and does tolerate cooler water too.
• Provide good filtration and oxygenation.
• Regular water changes are essential.
Goldfish are also found in quite a mix of colours too including gold, red, yellow, white, black, orange, silver and brown.
Consumer guidance:
Make sure you give Goldfish plenty of space in both ponds and aquariums. Being a coldwater fish, they require more oxygen so do not over stock these species. Stocking density is defined by the surface area (oxygen intake capability), not the total water volume.
Ponds:
• In outdoor ponds, (based on a correctly filtered set up) it is recommended that you do not stock more than 15cm of fish (not including the fish’s tail) per 1800cm² of surface area. With large fish, which consume more oxygen, we recommend that this figure is lower.
Aquariums:
• For indoor aquariums, it is advisable not stock more than 1cm of fish (excluding tail) per 120cm² water surface area of the aquarium. For example a 60 x 30cm aquarium should not contain any more than 15cm of Goldfish. Using this method will enhance the wellbeing of the fish and make the whole fish keeping experience easier and more enjoyable.
It is best to feed Goldfish varieties either floating or slow sinking pellets/sticks as their staple diet. For indoor fancy varieties, flake should ideally be avoided (except for the smallest fish) as they can draw in too much air during feeding which can lead to swimbladder issues.
These are possibly the hardiest of pet fish but do not abuse or neglect them, they are more than ‘just a Goldfish’ !!!
Common name(s): Goldfish
Scientific name: Carassius auratus
Other names: none
Native habitat:
Originally a captive bred, domesticated form of small wild Carp from Southern China. This fish is similar to the European Crucian Carp and is now found all over the world in a variety of habitats.
Potential lifespan:
• 10-20 years
Maximum size (approx.):
• 20 to 25cm, sometimes larger (excluding the tails)
Degree of difficulty to keep:
• Easy, perfect for beginners.
Swimming level: all areas.
• All areas.
Breeding:
Egg scatterer.
Sex:
• Only noticeable during breeding.
• Adult females are fuller bodied.
• Adult males exhibit breeding nodules on pectoral fins & gill plates.
Temperature:
• Can tolerate temperatures from 2 to 32°c.
Water parameters:
• pH from 6 to 8,
• Hardness 5 to 20°dGH.
Feeding:
• Floating or slow sinking pellets/sticks as their staple diet,
• Frozen bloodworms and daphnia are excellent for a treat.
• Flake food for small fish.
Minimum recommended pond size:
• 150 litres.
Minimum recommended aquarium size:
• 60cm long, 54 litres for small fish.
• 100cm/200L for larger specimens.
Cohabitation:
• Suitable to keep with all other Goldfish varieties and similar sized non-predatory pond fish. If kept with bigger fish such as Koi, take extra care to make sure they get their fair share of food too.
• Indoor aquariums, keep with other similar Goldfish varieties too, Minnows, temperate tropical species and coldwater algae eaters.
• Avoid keeping with fancy Goldfish varieties as they are likely to outcompete them for food. They may also ‘harass’ them from time to time (thinking its breeding season, but not bullying).
Other tips and information:
• Decorate the aquarium with fine gravel or sand along with rocks, stones, wood, and other ornaments of choice.
• Plastic, silk, or other artificial plants look great in these aquariums.
• Live plants can used but they are prone to getting eaten. Java Fern is worth a try though, it is supposedly distasteful to fish and does tolerate cooler water too.
• Provide good filtration and oxygenation.
• Regular water changes are essential.