Originally Posted by Betta Platy Addict
By toss this time I mean the liquid in the drop checker
I guess it really depends on how big the drop checker is and how much 4dkh you added. 4 drops should be good for a normal size, I have one that is quite small for my nano tank, so I only use 3 drops. I mean, the original ph test calls for 3 drops to 5mL of water, so that's why I typically use only 3.