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Most of hygger aquarium LED lights had sunrise and sunset functions, such as

hygger 999 Auto On Off LED Aquarium Light,

hygger 978 LED Fish Tank Lights,

hygger 957 Planted Aquarium Lighting.

Dear friends, you do not need to worry whether your fish would get hungry or not when you go out for a holiday or business trip. Hygger 967 auto fish feeder will feed fish with programmable time and portion -> Get the easy tricks to program fish feeder for auto feeding.

It may be caused by the shaft of the pump, please try to disassemble the pump, and clean it, and then wipe the shaft with oil. If the shaft is damaged, please provide us with photos. Here is a video for your reference to disassemble the pump and clean it.

Please try the following troubleshooting guide:

1. The filter pores inside were blocked, which caused the airflow reduced. Please try to disassemble and clean the air hole. Here is a video about how to clean the air hole.

2. If the problem still exists, please try to disassemble the air pump to see if the diaphragm is damaged, if the diaphragm is worn, the air pump will make noise. Here is a video about how to disassemble the pump.

The impeller causes the noise, please try to take out the mesh cover and the impellers to clean them.

In this case, please put the heater in a bucket alone and set the temperature. Then use a thermometer to test the water temperature and observe whether there are small bubbles around the heating rod. Please kindly check if the controller is working well.

Please try the following troubleshooting guide:

1. If used as a land pump, unplug the water pump first, reconnect the controller, and plug the adapter in. The water pump must be completely submerged.
2. If used as a submersible pump, please clean the pump before restarting it.

Please try the following troubleshooting guide:

1. Check whether the cotton sheet is too thick, causing water to overflow at the top and not enter the filter cotton sheet.
2. Take out the thick filter cotton and leave the coarse filter cotton to test whether the water can flow into the cotton piece and be filtered.

It seems like something is wrong with your setting if you prefer a sunrise and sunset. Please program the light with 20 20-minute break between each time section, as the light takes 15 minutes to slowly ramp up and down.
If the problem still exists, please send us a video to show your setting of light.

Please set the DIY model by following steps:

1. Long press the second button to turn on the light.
2. Press the first button to select the timer, you can see the 6H blue light blinking.
3. Then press the second button to choose the color, and keep pressing the second button until the full spectrum light shows up.
4. Press the third button to choose intensity, and keep pressing the third button until your preferred intensity is selected.
5. Done. You can leave it to let the light run on itself.

Please try the following troubleshooting guide:

1. Check whether the air inlet of the air stone or bubble plate is blocked.
2. Check whether the air pressure of the air pump is insufficient or the air pump is broken (no air is released)
3. Check whether the check valve is blocked or connected incorrectly.

As for the hygger 906 horizon aquarium:

1. You may need to run the filter for 5 to 7 days before you introduce any fish into the tank.
2. We don’t suggest putting too many fish into the fish tank, you can put 1 to 5 small fish that is 2 inches or a small turtle, or you can keep a betta in it.
3. You may need to change the poly fiber floss inside the filter for each month to keep the filter doing the best job.