As we all know, dragons fish will lose their eyes when they swim sideways. That’s right, everyone also uses lights to adjust them. The point is still correct. But have you done enough to supplement the light source?
Light Uneven
I once heard from Long Dian fishermen However, the Arowana at home is turned on and off. The key is that there is an uneven light source in the fish tank after turning on and off the lights. Of course, some arowanas are not sensitive to uneven low light, or the arowana does not respond significantly to the current slight uneven light source, so there is a situation where my arowana has lost its eyes after more than a year of raising it. This is slowly The accumulation of Arowana has aggravated the eye drop of the dragon fish in the middle and late stages.
More people appear and they swim sideways as soon as the newly bought dragon enters the tank. Some people say that the dragon fish is nervous, but in fact this is for the new environment. The light source is not suitable, which is like a worker who has just rescued the bottom of the mine, who needs to cover his eyes to avoid the light source of external stimuli.

Some people also asked, how come the dragon fish loses less eyes in the fishing ground? That is because the environment of the fishery is larger than that of the domestic fish tank, and the uneven light source will not stand out in the large environment. For example, the outside light source in the pond is relatively uniform. The dragon fish in the hands of large merchants are sold in a short period of time. The fish tank is also larger than the domestic one, which is several meters by several meters. In short, the larger the fish tank, the easier the light source is uniform; Arowana in the hands of small merchants will start to lose eyes easily, but the cycle is short, the amount of feeding is small, and the loss of eyes is not very obvious.
Aquarium environment
When it comes to the light source, it comes to the environment, the hardware environment of the fish tank and the environment around the room.
Aquarium environment:
The color of the six sides of the fish tank, the position and brightness of the lighting, the overflow structure of the fish tank
indoor environment:
The position and orientation of the fish tank, the color of the interior decoration, the number and brightness of indoor ceiling lights and wall lights
Aquarists, when you adjust the lighting of the fish tank, have you considered the two aspects of the aquarium environment and the indoor environment? Therefore, many aquarists have made light adjustments, but they have not solved them in place.