Hi all, I was wondering if I should worry about evaporation from my dosing containers. I dose brightwell reefcode a/b and have drilled holes in the caps of the 2L jugs to fit the tubing down and have made the hole big enough so i wouldn't have to worry about creating a vacuum. My concern is that my tank is small at 25 gallons so the 2L i currently use would last around a year. Should i get smaller containers that hold around 1 months supply of additives instead?