How do I tune G string low?

Hi! I would like to try tuning my "high" G string to be a "low" G string on my soprano.

I had some spare strings so I put on a spare "C" string and tuned it to a low G but wow it is so loosy goosey that low. Maybe I should be using different strings?

Thanks!

You really need to get a low g string, several brands make them such as Aquila, Worth, Freemont, etc. Look on Musicguymics ebay store, he sells sets and individual strings. I'm pretty sure Elderly does as well. I have used a classical guitar d string on my tenors with pretty good results too, but it may be a bit heavy for a soprano.

What kenikas said. You can't "tune" the string low... it has to be a string with different tension so that when you tune it to G it is at the lower register.

Actually you can drop it an octave, and that is not that much difference to make it that loose..