Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to clean algae [title] Scrub down the side of the tank with an algae scrubber. [step] Remove your fish from the tank before scrubbing down the sides with an algae scrubber. You can buy an algae scrubber online or at a local pet store.

Ending1: Fill the scrubber down with cool water, adding 0.5-0.8 cups (143ml). [substeps] If you make a mess, try shaking the tap water off. Ending2: Gently clean down the sides with the scrubber until the algae is gone. [substeps] Algae scrubbers are dirty, so don't wash them with water. Ending3: You should use this to remove algae from a fish tank rather than simply changing out the water. Use the scrubber to gently scrub the sides and bottom of the tank where you see algae. Ending4: Dip the algae scrubber into the tank water, then scrub down the side of the tank until it is clean. [substeps] If your tank does not have an algae scrubber, you can use a toothbrush.

Answer format: ending1/ending2/ending3/ending4