Hi there Tonnie, I am sorry about your allergy, that has to be tricky. Regarding the automatic feeders I can give you ideas for your 2 cats. The Super Feeder 3XL Combo allows you to forget about filling the hopper often because it comes with a 1.five Gallon excess hopper, https://laneewnet.empirewiki.com/9257745/the_fact_about_wet_cat_food_that_no_one_is_suggesting