I'm in Costa Rica. I'm waiting for my Fox Valley to arrive here. Some times it will be held up in customs for a week.My Fox Valley formula is gone TODAY. all I have left is Lactol.. my 2 young 8-week-old tree squirrels are refusing the ,Lactol. I am asking if anyone has used this product is there anything that I can add to it to make it more tasty to my two little friends until my Fox Valley arrives .???