A must for sucess with a reef tank. By MandM on 7/24/2010
MandM would recommend this product to a friend
Automating the top-off process made a huge difference in my tank. In the summer I evaporate up to 3g per day. Daily manual top-offs were messy and if I missed a day, the salinitiy got too high to allow a complete top-off, I had to add slowly. Keeping a constant level made for a much happier tank and tank-keeper.