Most often, the zebra fish is recognized as Danio rerio. Our more experienced customers never had these problems and would laugh if we warned them about them.The zebra danio, also known as zebra fish, is a freshwater fish belonging to the minnow family of Cyprinidae. When I worked for a lfs, we found that newbies had the most problems with badly bahaved fish, usually because they only had say 3 danios or had a mixed group that were not as settled as a single shoal of one species would be. good husbandry (enough space, appropriate tank mates, enough in the shoal, etc) makes nipping behaviours less likely. In short, the OP needs a new tank and they need is ASAP.Īs for the danios - my friend has had three bettas shredded by her school of danios. Even if the fish doesn't stunt, a small tank is still prone to toxin build up and doesn't provide the necessary space for stimulation and exercise. I know stunting is a response to hormones but in small tanks the risk if stuning is far greater due to the smaller volume of water. maybe all the goldies I have seen have been on growth hormones If that makes sense? Like they might get to 18" when full grown but should have reached 12" or so after a couple of years. Ok, I should have said that they can reach an adult size after two years. The 9 gallon could be used for a micro-community of tropical fish, some small coldwater fish (ask for recommendations) or something more interesting like a betta or pair of dwarf puffers (both tropical). I would recommend you either rehome the fish or get a larger tank. Contrary to fish shop advice, they are not suitable for small tanks. A group of 6 danios should have at least 15 imperial gallons and 12 would need at least 20. They're also renowned fin-nippers and you may find your goldfish's tail gets shorter. Goldfish will eat small fish if they can catch them and they will grow big enough to eat daniosĪ lot of information about a fish that most people think can be put in a bowl.Ī 9 gallon tank isn't even really suitable for the danios, tbh, as these little guys get to 2.5 inches, require shoals of at last 6 per species (so you'd need to have 12 danios) and are highly active. Goldfish require a diet high in vegetable matter (plants, algae, veggies) but will also appreciate live/frozen foods (such as bloodworms)įancy goldfish are prone to constipation (which can cause swimbladder and death) and should be fed sinking goldfish pellets and will benefit from cooked, deshelled and chopped peas every so often. Single tailed goldfish can easily damage the more delicate fancies and shouldn't be housed with them Single tailed goldfish prefer cold temperatures, ideally under 20 Cįancies like sub-tropical temps of 20-24 C or so Goldfish are social, boisterous fish that should be kept in groups and not housed with other fish if possible Small tanks and poor water conditions will affect the growth of the fish, from slowing it to stopping it altogether - this is catastropic for the fish and will contribute to an early and painful demise. Goldfish need a lot of oxygen in the water and this should be provided by ensuring the surface of the water is always moving Goldfish require filters and most varieties want a high level of flow in the tank to simulate their natural environment The smallest (6 inch) adult goldfish should be kept in a 3 foot tank of at least 20 gallons, with room for upgrades if it growsĪ large goldfish (12 inch) should be kept in a 6 foot tank or pond - larger fish (over 12 inches) need ponds unless you can cope with a 10-12 foot tank.įancy goldfish are only suitable for ponds on warm climates or the summer. Goldfish produce a truly stunning amount of poo and require double the filtration that one would expect Single tailed goldfish (commons, comets, shubunkins, etc) grow to between 10 and 24 inches, depending on variety Goldfish have a natural lifespan of between 10 and 30 years, depending on varietyįancy goldfish typically grow to between 6 and 10 inches, depending on variety Most people, including some experienced fishkeepers and pet shop workers, will tell you that goldfish will grow to the size of their tank and don't need much care. This is so routine and so many people are totally oblivious of the need to research their pets that this is how most goldfish are kept. Most pet goldfish only reach 2-3 inches and live for a few months or even a couple of years. They have been traditionally subjected to poor living conditions, low/non-existent filtration and small tanks/bowls. Goldfish are one of the most abused species in the hobby.
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