Je recommande ce produit de bonne qualité au regard du prix !!

This is the first time using a doser on my 37 gallon reef, so I have nothing to compare the doser to. It works great and I am glad to have my life back. After a few adjustments, I was able to free up enough time to actually appreciate the inhabitants. As long as you remember to back all the way out the program each time you make adjustments, you're good to go. I would highly recommend this product.