Instruct: Classify an Amazon review as either positive or negative.
Query: Don't buy this!

My son received this as a Christmas present. We opened it and it looked fine, sent away for the ants which took approximately 8 weeks to arrive. When we reopened the gel farm it was covered in mold. I went out and purchased another one and after 2 days the ants hadn't made any tunnels at all. Just went up and down the the holes we created for them and walked across the top. I felt sorry for them so we went out and got the sand farm and that was much cooler. We transferred the ants to that farm and they began to make tunnels all over the place. With the sand farm you do have to feed them though, so keep that in mind if you opt for the sand farm. I would not recommend buying the gel one.