I'm planning a vacation coming up in march and it'll be my first time away from my tank for a period of time. Its a 90 gallon display, 14 gallon fuge, and about 10 gallons of water in sump. I add about .75-1 gal a day from evaporation. I'm shopping around for an ato as well as a Doser to maintain my tank while I'm gone. I'll need to dose alk and Ca. Not overly concerned with mag as I rarely see a drop significant enough to cause a problem over a weeks time. Any suggestions for peace of mind? I'd like it to be budget friendly, but not willing to sacrifice quality and assurance it will do what it is supposed to for a few bucks. Any advice is appreciated. I would get a tank sitter, but, I'd rather just have myself to blame if something goes south rather than put someone in that situation. Lol. I will add I live in a second floor apartment so im sure my downstairs neighbor would appreciate a decent ato that won't be a flood hazard. Thanks again!