![]() Once you’ve eliminated illness as a possibility, pay attention to how many Neons are in the tank and whether they’re male or female.įirstly, if there are fewer than 6-10 Neon Tetras in a group they rarely school (again, they actually shoal) as this isn’t enough to feel any safer, as mentioned above. Read more: Neon Tetra Disease, Ich, Cotton Mouth and other Illnesses (Treatment Guide) If the tank conditions were right and your fish were schooling before, seeing them leave the group can rightly be worrying. This is especially true if any of your Neon Tetras stopped schooling suddenly. Keep an eye out for signs of conditions like Neon Tetra Disease, Ich or Dropsy and quarantine any fish that displays symptoms immediately. If one Neon Tetra won’t school it could be a sign of illness, which always affects a fish’s behavior first. My Neon Tetras and Cardinal Tetras school/shoal together most of the time One Neon Tetra not schooling Increasing the size of the group by adding more to the tank may work, but again, always make sure your tank is big enough before adding more or you risk over-stocking and impacting the health of your fish. ![]() If you have less than 6 Neons in your tank there would just be no point in them schooling for safety, as the school would not be big enough to put off any potential attackers. If you have happy fish that don’t feel the need to school together, be satisfied that you’re doing a great job, not annoyed that your ‘display’ didn’t turn out as planned!Īnother reason why your Neon Tetras may not be schooling is that there are simply too few of them in the group. However, fish are intelligent animals and the first priority of any owner should be their health and happiness rather than simply seeing them as decoration. This isn’t necessarily a bad thing but many fishkeepers buy Neon Tetras specifically because they love to see them schooling across the tank, which is understandable. In your aquarium, especially if there are no obvious dangers from other fish, they may not school (or shoal) at all. In the wild, Neon Tetras are more likely to school together to achieve safety in numbers as they live in waters where natural predators exist. Read more: Neon Tetra Tank Size: Everything You Need To Know If you over-stock the tank the bioload will be too high and your fish will suffer the health problems associated with poor water quality. However, always make sure that your tank is big enough to accommodate this number of fish before committing to buying a school of Tetras. Too few and your fish are in fear of being attacked by predators. In fish like Neon Tetras, stress leads directly to physical health problems and even early death, and schooling fish like Neons therefore rely on the safety in numbers that comes with living in a school. The key is making sure your tank is big enough to accommodate this number of Neons. The minimum number of Neons that should be kept together is 6, but ideally groups of 10 or more are needed to help them feel safe and reduce stress. Read more: Neon Tetra behavior guide How many Neon Tetras for a school? Neons behave like this because of their quick reflexes and extreme sensitivity to stimuli like movements in the water – each fish reacts the same way to the same conditions, making it easy for the group to stick together rather than darting off in all directions when threatened. ![]() Shoaling, where fish basically swim close to each other, is what Neons do, but most people confuse the two.įor the purposes of this article I’ll use the two terms interchangeably as there are a lot of questions online about Neon Tetras ‘schooling’, and yes, they are both happier and healthier in a large group. Schooling is highly synchronized behavior where huge schools of fish behave as one organism to confuse predators and protect the group. Read on to find out why! Do Neon Tetras school? We all love to see a big group of fish shoaling together (more on this below!) but actually, it’s usually a good sign when Neon Tetras aren’t schooling.
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