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Why does your Oscar fish act like its dead when you turn on the lights?
Wiki User
∙ 14y ago
Let it settle down. They are very touchy when they are in strange surroundings. Basic rules for Oscars. 1 Oscar needs at least a 20 gallon tank. temperature about 80F pH around 6.8 a good cycled filter running permanently and at least 50% of its water changed every week.
Wiki User
∙ 14y ago
Wiki User
∙ 14y agoI would assume the water is bad and urgently needs changing. Oscars need a large aquarium, (at least 6 foot long) a good, properly cycled power filter and at least 50% of their water changed weekly.
Wiki User
∙ 14y agoLike the vast majority of fish, when it is dark Oscars go into a kind of 'stupor' or sleep. When the lights are turned on, the fish takes a while to "wake up" and looks dazed for a while. This is perfectly normal behaviour.
Wiki User
∙ 16y agoHe is just shy about his new surroundings and if he is not the same size or bigger than the other fish he may be a little timid. Put some live food in there and watch him come alive. Start the little guys out on brine shrimp they will love to hunt them down and its fun to watch, then graduate up to feeder fish.
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It starts to smell like a dead fish.
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No - fish like to sleep, too!
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Oscars eat about anything, like guppies and small aquarium sharks.
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No. In pet stores the fish do not have lights on 24/7 as you said anyway, Fish do not have eyelids so they cannot shut their eyes to sleep, this means they need pure light to see and pure darkness to sleep. I keep the light on for something like 6-9 hours per day and leave the light of at night so my little fishee wishee's can get some sleep. Its good for the tank to look pretty as with the lights but just think; if you had to try and sleep with lights beaming down on you?? Hope this helps ........................................................................................................................................... also if you have an aggressive fish (like i do) ex Florida gar fish, piranha or Oscar leaving the light on 24/7 can irritate them and actually make them more aggressive
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