Electrical cables are important! When you open the small door below tank, there will be many cables and timers. Cables provide electricity to lamps, pumps and fans. Check if they are in right position! Be careful this is life power cables! Use two hands to unplug or plug cables!
When you want to give food to corals – unplug both white and black cables that are in front on the right side. Use two hands! Use right hand to hold white extension cable on the right and left hand unplug first white cable and later the black cable.
The white cable leads to another extension where there are two black cables for water filter pumps inside the tank. Generally, do not touch them!
The black cable power the main water pump that circulates water from the tank to back of tank to filters and to the main pump on the left side behind the water tank.
Remember to plug them in certain order when there will be time to do that!
Do not touch any other cables!