My family is planning a month-long vacation in the summer. It is a few months away, but I want to plan ahead of time because tank maintenance is obviously going to be a concern. I have two betta tanks. One is a 5 gallon and one is a 10 gallon. My 5 gallon has one female betta and 3 ghost shrimp. It also has some water wisteria. My 10 gallon is divided and has 2 male bettas. There is one anubias nana on each side and water wisteria. There is a moss ball in both aquariums. My grandmother will be home and she will be able to feed the fish. But my main concerns are water changes/gravel vacuuming, feeding the ghost shrimp (since I hand feed them because my betta eats pellets), rinsing the filter media and moss balls. Does anyone have advice on how I should go about this? There isn't anyone who I will be able to ask to help maintain the tanks and my grandmother can only do so much.