Rotala Butterfly - Planted Aquarium Nutrient Dosing Calculator

The trouble I found with Rotala Butterfly is that you had to put all you tank and dosing volumes/frequency's in every time you used it in, then you had to pick your salts, some salts can be easy to choose the wrong one also ( I did). So every time you enter the data was another chance of making a mistake plus you had to be online. Then you needed to add up all the results.

Hence the IFC is online and you can have multiple tanks and dosing regimes setup once, and it adds up all the Cations and Anions works out any dK and dG added plus gives you the TDS of all the salts too

I believe that Rotala Butterfy is the only useful calculator available for those of us who only use mobile (phone or tablet) devices … true?
I had no problem adding data and keeping track of the results - I like to have all this info in written journal form near my tanks, anyway.