Don't worry about vacation.Just change 20% of water before,put more live ghost shrimp (30 or 40 per eel or moray eel),add 50 small fish live,put the light with the timer in plug and set up to stop in the night and start in the morning the light .Keep the air filter on,be sure the aquarium have a tight cover and is not a problem,you can enjoy the 5 or 7 days vacation.