Christmas tree is not drinking water...advice.?

I sent my husband out to buy our Christmas tree this year..alone. Big mistake. The tree is beautiful .We spent yesterday putting up the train set, setting up the tree, lights on, ornaments hung. Then my husband remarked that the tree wasn't drinking alot and he hoped it wouldn't dry out. Then I said "Well, you did have them cut off the bottom of the trunk, right?"

I got a stupid blank look in return. I can't believe it! We've always had them take and inch off the bottom and now he acts like he never heard of the concept. Grrr.

Anyway, there is no way that tree is coming down. Any things you can add to the water to maybe open it up and get it drinking?