Below is an instruction that describes a task. Write a response that appropriately completes the request in Swahili. Please answer in Swahili.

### Instruction:
Nicole has 4 fish tanks. The first two tanks need 8 gallons of water each and the other two need 2 fewer gallons of water each than the first two tanks. If Nicole needs to change the water of the aquarium every week, how many gallons of water will she need in four weeks?

### Response:
 Mabwawa mawili yanahitaji galoni 6 ya maji kila moja.
Mabwawa yote manne yanahitaji jumla ya galoni 8 + 8 + 6 + 6 = 28 ya maji kila wiki.
Hivyo, Nicole anahitaji jumla ya galoni 28 x 4 = 112 ya maji katika wiki nne.