IN: Write the next sentence in this paragraph:
How to choose fish for a freshwater aquarium
Choose fish that will fit in your aquarium.
If you already have an aquarium, you can use its size to help inform your decision regarding which fish to purchase. Do a little online research-or talk to knowledgeable sales staff at a pet store-to see how large specific species of fish will grow to be.
OPTIONS:
- Most of the breeds of freshwater fish that you find at a pet store will fit in a 15-gallon tank. Although juvenile fish you see in pet stores may be small, as they grow, many species will become quite large.
- Keeping your fish small and its size in mind can also help you plan out what tank to buy and getting your fish ready for buying. Treat your fish with the same care you do when purchasing fish from a store or natural food service.
- Remember that if you don't buy the right tank, you run the risk of having larger fish go extinct or staying out of water for a longer time. Perhaps fish that are worth purchasing will also grow the easiest and more cost-effective.
- Then, consider buying more fish or switching to smaller species-fish that will thrive under only a few pounds of fish, though this does not guarantee a clean fish tank. At the same time, try to be happy with each fish that you purchase.

OUT: Most of the breeds of freshwater fish that you find at a pet store will fit in a 15-gallon tank. Although juvenile fish you see in pet stores may be small, as they grow, many species will become quite large.

IN: Write the next sentence in this paragraph:
How to skim surface scum from your fish tank
Scoop out debris with a net.
Old fish food, waste, algae, and other debris can collect on the surface of the water. Using an aquarium net, gently scoop up waste from the surface of the water.
OPTIONS:
- Do this slowly so that you do not disturb your fish. Empty the net into a trashcan between each scoop.
- The amount of debris in the net, and the amount of time it takes to remove it helps make the process easier. If you are worried about big build up, you can use a yard mop to scoop up whatever remains and rinse it off on a clean, dry surface.
- You can use a dropcloth for this. You will wear protective goggles when you scoop and retrieve debris.
- You do not need a limit to how much you can scoop out so as to avoid contaminating your tank. Avoid handling fresh water, fish waste, or other debris on the surface of your tank or found in a public aquarium.

OUT: Do this slowly so that you do not disturb your fish. Empty the net into a trashcan between each scoop.

IN: Write the next sentence in this paragraph:
How to remove ink from clothes
Place a cloth underneath the stain.
If you are working on a fresh stain, you should try to absorb as much ink as possible. Before blotting the stain, place a white cloth or rag underneath the stained portion of the garment.
OPTIONS:
- This will prevent the stain from spreading to the back of the garment while you attempt to remove it. Use a white cloth to ensure that the color of the cloth doesn't lift and further stain the garment you're working on.
- The cloth should be lined up with the stain. Quickly press the cloth into the stain, leaving a small gap in the cloth.
- Try to avoid scratching the fabric with the cloth. If you notice that the stain gets darker and more noticeable, put a white cloth underneath the stain.
- Place a paper towel underneath the cloth to absorb additional ink and position it so it will not smudge over time. If the stain remains after exposure, you may use a solution made for the specific stain, like a mild soap or turpentine to spread out the stain.

OUT:
This will prevent the stain from spreading to the back of the garment while you attempt to remove it. Use a white cloth to ensure that the color of the cloth doesn't lift and further stain the garment you're working on.