Sea monkeys in 3 gallon tank care help?

I recently bought a 3 gallon tank for my sea monkeys because the little plastic tank won't work for my trip to college(5 hours). The tank came with a filtration system, Tetra water purifier, and an air pump. Will the Tetra Aqua products be safe for sea monkeys or should I throw it out? And if I can't use sunlight to grow algae in my dorm to feed them will I have to use the food packets or is there another way to get algae? Please only serious helpful answers. I need to know the best way to care for them in a college dorm.