Letakkan ujung vacuum ke kerikil akuarium. Lepaskan selang. Tutupi selang jika ujungnya mulai jernih. Angkat vacuum dari kerikil, tetapi jangan keluarkan dulu dari air. Pindahkan vacuum ke kumpulan kerikil berikutnya dan ulangi proses di atas. Jangan bersihkan semua kerikil.

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Simply stick it straight down, as far as it will go. Your thumb should still be blocking the end of the tube, and that the end of the tube is in the bucket. Once you let go of the tube, dirty water will start flowing out. If you have very fine-grit gravel, such as sand, don't stick the vacuum all the way down. Instead, place the mouth just over the top of the sand. With the end of the tube still in the bucket, slowly pull your thumb away from the end of the tube. This will start creating the siphoning effect. Dirty water will flow out of the end of the tube and into the bucket. The gravel will shake and rattle inside the tube. If you are using a Python, or a similar type, simply turn the water on the begin siphoning. How long this takes will depend on how dirty your aquarium is to begin with. When you recover the tube, the gravel will settle once again.  If the gravel starts to go too far up the vacuum, just cover the end of the tube and let the gravel settle. Then, uncover the tube and let the water flow again. If you are using a Python, or a similar type, simply turn the water off the stop siphoning. Try to keep it as straight as possible, so that you don't dislodge the adjacent debris. Push the vacuum straight down into the gravel, and slowly release the end of the tube. When the water runs clear again, cover the tube back up and carefully lift the vacuum out.  If your tank has any caves, rocks, logs, and other nooks and crannies, be sure to give those special attention. These areas tend to get the most waste. If your tank has any live plants, leave a 2 inch (5.08 centimeters) radius around the stems. Plants love organic waste. If you remove this waste, the plants won't have anything to eat. Keep vacuuming until the water level is two-thirds of the way full. By now, you will have cleaned one-fourth to one-third of the gravel. This is perfectly fine. You do not want to clean more than that at one time. Aquarium gravel hosts a lot of good, helpful bacteria that is important for the health of your tank. You...