Absolutely! I have a cup that measures ml, cups and fluid oz. I found the cup at the local grocery store. I just add the stones to the cup until I get to the 300ml line. I use this cup for all of my zeo measurements.
With all zeo additives, its important that you use your net water volume. You need to consider sand, rock, equipment, etc. Once you have estimated your net water volume, you can tailor your dosing to this water volume.
The stones need to be changed every six weeks. Over time, when I changed my stones, I've played around with the amount. 375ml is the maximum I can use for my tank. Whenever I use any more... growth stops, colors start to become pale, and tissue recession starts at the base. 300ml is a pretty safe amount for 150g net. With some simple math, I came up with the net 25g/50ml stone recommendation. Its a pretty safe amount that does allow some room for error. You also will need to adjust the flow through the reactor. I hold the cup up to the reactor output. I adjust the flow so that I can fill my cup 16oz up in 10 seconds.
Now that you have the correct amount of stones and flow, the testing and the feeding begins. Until you can develop a routine that produces desired water params, you will need to test, test, and test some more.
These are some very basic recommendations to get started. Even though you can become more aggressive with the zeo products, this is a great starting point. Taking this approach lets you become familiar with the zeo method, and also lets you increase your dosing, reactor flow, and amount of stones based on how daring you want to be. Once you master the basics... Then you can start tweaking your colors with the other additives
Hope this helps:thumbsup:
James