Haha! Thanks! So just for future knowledge…..
When I first carboy it: take a specific gravity and write it down.
Do it again after fermentation.
Then again before bottling and compare to know? Thanks and sorry if I should know this already.
Yes, and "after fermentation" and "before bottling" should be the same. You can plug the numbers into a calculator to find out your ABV:
Use our ABV Calculator to show alcohol by volume based on gravity change & eliminate the guess work. Sign up for a free Brewer's Friend account & get brewing!
www.brewersfriend.com
Your hydrometer looks like it does have a specific gravity scale on it, you just didn't get a picture of that part. I think it's the part the has "Sp G..." at the top with 60 underneath it. The numbers should go from something like 0.990 at the top and increase towards the bottom of the hydrometer, probably going up to something like 1.150 at the bottom.
The 60 underneath the Sp G... is probably the temperature it is calibrated at, and the ideal temperature to take the reading. Calculator for temperature correction:
Use our Hydrometer Temerature Adjustment Calculator to show actual specific gravity, correcting for the sample wort temperature & the hydrometer's calibration.
www.brewersfriend.com
It also says on there to take the reading below the meniscus, so where the liquid curves at the top, take the reading from the bottom of the curve.
But yes, it looks like it has fermented quite a bit by how far down the hydrometer has sunk into the liquid.