Well, looking at your tank and the plant species (Lots of Anubias varieties, Fern and such) I probably wouldn't be too worried leaving the tank without fertilizer dosing for two weeks... Yes, it may be a stretch - all tanks are unique... alternatively, if you dose the day you leave and can have someone come over and dose like 2-3 times or so during your vacation I'll bet it will be fine.I’ve been contemplating an auto doser for a while now, going to Florida for 16 days has forced my decision!