Going away for 18 days.

ok so im leaving the country for 18 days and I'm wondering if my 2 week old girls will still be alive when i come back. I have four Chocolope plants in 5 gallon buckets that are hooked up to an Oasis automatic watering system ( http://www.amazon.com/Claber-8053-4-Program-Automatic-Watering/dp/B000U5YFR4). The oasis system waters the plants twice a day with a small amount of water. I wonder if it will give them too much water? I have one 400W light that is on an 18/6 automatic timer. So do you guys think they will be alive when I come back? Any tips or tricks would be greatly appreciated.

Any opinions?

If they are in soil don't water twice a day the roots need oxygen

they make those cheap glass watering orbs that isnt supposed to overwater ... dont know if they would last 18 days or not .. but might be worth checking out.

I looked into the watering orbs. the only problem with them is that they will not be able to hold enough water for eighteen days. thanks for the advice jeff.