I have a 25 gallon tank with live rock, sand, 1 trigger (small and selling him soon), 3 clowns, 2 anenomes, and 1 hermit crab. I'm leaving in a day to go on vacation and will not be back for 10 days. I have my light on a timer and am going to have someone come and feed the fish every fews days while I'm gone. I am worried about algae buildup though and not being able to put in my weekly dose of calcium and iodine. Anyone have any suggestions for what I can do before I leave? Thank you!