Pet food scheduler - every other day?

Hi Everyone - loving ActionTiles and have a tablet permanently mounted in the kitchen for monitoring, weather and lighting scene control.  We have a turtle that gets fed once every 2 days - but it's easy to forget which day she was fed and difficult to know if someone else fed her already.   

I was thinking ActionTiles could help here.  Two possible designs;

1.  A tile that lights up at a pre-programmed time every other day.  Pressing the tile would turn it off.  Smartthings can almost do this as a routine (turn on a virtual switch at a certain time).  The limitation is that it can't do "every other day" only specific days of the week).  

2.  A calendar view that highlights every other day with a way to check off the highlighted days somehow.   

Does anyone have an idea on how to implement either option?