Good product. I have purchased two, and it works perfectly!
I used this to introduce 6 new shrimp to the aquarium. When the drip was at the right level I was not sure how it would work sine temperature is very important when keeping shrimp so I had to put the shrimp in a smaller container and put it inside my small shrimp aquarium. It was simple to use but then I still had the problem of getting the shrimp to the right temperature before releasing them. I'm not sure if I'll use it again. The shrimp are very healthy and colorful though!