Please choose the correct ending to complete the given sentence: Pets and Animals: [header] How to get rid of snails in an aquarium [title] Avoid overfeeding. [step] Overfeeding can led to a snail population boom. Try underfeeding your aquarium inhabitants (only feeding enough for the fish to eat at each feeding) to see if that solves snail overpopulation.

Ending1: That's because snails will be given too much food. [substeps] Think about giving your fish more water for optimal control over their size when they eat. Ending2: [title] Use a chemical to kill the snails. [step] The most common, fish-safe chemical used to kill snails is copper sulfate. Ending3: You might try tank companions, such as fish guard pets, for example. [substeps] You can stay up late feeding your visitors if you find that snail overpopulation is a problem. Ending4: It would not be enough to protect your aquarium, especially if any turtles look occupied. [substeps] If you need to feed your tank, consider feeding it mayonnaise or raw tuna.

Answer format: ending1/ending2/ending3/ending4