Nets are available in a variety of sizes and designs. Smaller nets are generally used for catching fry and little fish. The fine webbing in these nets is soft and similar in structure to cheesecloth. Small nets are also handy for scooping out uneaten food and suspended debris from the water.
Larger nets are usually used for capturing fish. You will find that using two large nets to capture a Betta is much easier than trying to do the job with only one. Your fish can easily be coaxed into the center of one net by gently nudging it with the other. You should buy several nets of different sizes so that you will be prepared to handle almost any task.
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