I got it too. It looks like it will do the job of tracking/charting and the alerts are handy too. The interface is a bit buggy but it works. The pre-loaded DB of fish/plants is a nice feature and its pretty easy to customize a fish label if it doesn't exist in the db. (They didn't have Galaxy Rasbora but had about 8 other rasboras in there)
You can put it in notes but there doesn't appear to be individual form fields (and resulting charts) for dose tracking. that would be awesome.. To calculate your dosing and track it all in one. Im going to write to the developer.