Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to fix cloudy aquarium water [title] Unplug the aquarium heater. [step] Disconnect any other power sources for the tank as well so there is no risk of electric shock while you perform maintenance on the tank. But don't remove the electrical devices yet.

Ending1: [title] Remove all decorations, and fake plants. [step] Wear rubber, water proof gloves for this. Ending2: [title] Loosen the screws from the pipework posts by hand. [step] Set the hooks securely and slowly loosen both pipework posts. Ending3: [substeps] Do not remove the light fixture from the tank. The power outlets only have undifferentiated ports which you can access. Ending4: Take them off the tank or pop them off completely. Also, remove any drip monitors or lights that could betray the power being used.

Answer format: ending1/ending2/ending3/ending4