Instruct: Classify Amazon reviews into positive or negative sentiment
Query: PRODUCT DOES NOT WORK AS INDICATED

I purchased this Bubble-Wall 48" for my 55 gallon tank because my goldfish love to swim through the bubbles and the color (black) was very appealing since it wouldn't stand out like the blue ones. However, no matter what air pump I hooked it up to, the wand did not work. I am very disappointed and DO NOT recommend this product to anyone.Don't waste your money.