this is a exspensive hobby and there are cost effective solution my friend but Amazon will not be able to inform you on these items as well as a LFS easy solution save up to purchase in the mean time use a hydrometer Dan its not so black and white , that's where the lfs steps in and is the grey Matter I have unused open (blister pack fail) Hydrometers for under 10.00 I even have one I can loan a customer til he saves up to purchase the refractometer. Amazon doesn't come near to any type of customer service like that or even care trust me when ever you don't feel like there are options remember your lfs and if they care and sell responsibly you will be taken care of and your best interest kept in high regard