Argument writing about fish

1 metre is a good size for fish to take home

The current size for fish such as snapper to be taken home is 30 centimetres. I think a good size is 1 metre or more. I will explain why I think this in this argument.

If people take 30 cm fish then they need a lot of fish to feed their family. If they take a big size fish then they will be able to feed their family with the bigger fish and don't need to catch too many fish to feed everyone. 

Leaving the fish to grow will also allow the fish to produce more fish in the sea. There will many more fish in the sea.