Instruct: Classify an Amazon review as either positive or negative.
Query: does not last

The carpet was a great size and fit my tank well. However after a week it needed to be washed. I sprayed it off then hung it to dry. Once dry it was warped and misshapen. When I put it back in the tank it seems to have shrunk too! I have used the eco carpet in the past which held up much better to a washing.