Parrot fish is a kind of fish in the middle of the tank, under normal circumstances are in the middle of the water activities. If they lie underwater all the time, they may be sick. First of all, there may be a problem with their swim bladder, which causes them to have an imbalance, so that they can't swim normally, and once they swim, they may flip over and float above the water. As a result, they generally do not continue to swim, but lie underwater. In addition, it may be caused by other diseases, such as "saprolegniasis", which can be judged by observing the body of parrot fish, if the body of parrot fish is rotten.
If the parrot fish lies underwater and does not move, measures should be taken in time according to the specific reasons. If it is only the swim bladder that causes the imbalance, then the water needs to be changed by one third immediately, and then the water needs to be changed by about one fifth at a time for several days. After the first water change, add about two caps of nitrifying bacteria, then add a cap every day for a week, and you can basically cure it. If "saprolegniasis", considering that the disease is contagious, it is necessary to isolate and treat the diseased fish in a separate tank, and then treat them with yellow powder or potassium permanganate solution. It is better to change water and disinfect the original fish tank to ensure that other parrot fish are not infected.
