But fish don t yawn for the reasons we yawn and also their yawning isn t contagious Many fish seem like yawning just like we do. It appears just like they are yawning followed by a stretch.

Contagious yawning is seen in mammals reptiles and even birds.

Oscar fish Stickleback fish open their mouth accompanied by raised spines and flexed body. Siamese fighting fish are known to yawn when siamese fighting fish are on their own they hardly ever yawn. But if you put another siamese fighting fish in the same tank they will yawn 300 times more often. And once they are actually fighting their yawning rate doubles again. Quote taken from latest great moments in science by dr. The article below offers information compulsory for raising and breeding oscar fish properly their behavioural issues tank mates faq and forum answers on questions asked by our visitors and we also have another page devoted to oscars be sure to visit it too as it contains personal experiences of fish keepers oscar fish profile. If your fish is yawning most of the time it means that you need to change some of the water in your tank to introduce more oxygen. Another sign that your tank has low oxygen is if your fish are hanging out at the top of the tank a lot.

Usually fish yawning occurs as a display of territoriality or to attract females. If your fish is yawning at nothing it s for the same reason people yawnan abundance of co2. If your fish are yawning all the time do a water change and boost aeration in the tank. Petting giant oscar cichlid. A million oscar desires seventy 5 gallons all to itself. With heating and a million.5x filtration. No longer a lamp and airstone.

2 i think you probably did no longer cycle the tank earlier getting the fish. Cycling is a protracted potential of making up bacterial colonies by potential of feeding them organic ammonia. Those bacterial colonies later cope with fish waste it rather is often Shaking there tail is like sending message youre in my territory like a cat hissing get away .most people keep oscar alone or if there will be a tank mate its best if its different species .i recently added new oscar with my old one and it was okay for a while now there kind od figthing .its tuff with oscar somtimes they like company somtimes they will turn on there tank mate even if they were

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