As I understand it , a rough rule of thumb is a 1 lb Test curve rod is used to cast a total of 1oz in weight ( which is roughly 30g ) - the 10-30g would be the recommended casting range of your little spinning rod I believe .
Personally I would go for a 1 1/2 lb test curve as Nick advises , and then maybe later move on to the stronger rods the others have recommended , the 1 1/2 lb would then be used for floater fishing .
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