I know it says to mix this in a ratio of 1 oz./5 gal but how much is 1 oz? I dont see a weight on the bottle (I have a small one, maybe 4 inches tall and 1 inch diameter). Would a tsp or tbsp do the trick or more?
It's about 30 mL, which is about 2 TB. If you have the bottle with the little filler part, 30 mLs should be easy.