I have gone on vacation and explained to the caretakers what to do in the situation of evaporation, food, dosing, etc. Sadly every time I come back to the corals unhappy and fish hiding pale in the rockwork. Just recently the pumps went out becouse of evaporation and before the caretaker could do anything all the coral and fish were dead. I am just wondering what you guys do to help prepare and keep your tank healthy when you're not there.