im going to be dosing kalk and i need a jug that can hold it and my ato water. i have about 6 in width to fit the jug and it needs to fit a a aqualifter pump through the hole in the lid. I could maybe move my sump over another inch or two but prefer not to. Ive been looking on amazon but all of the lids are too small. size doesnt matter as long as its over 2 gallons