The Red Sea Max is cycling, I have a few pieces of live rock, and I threw some zoo’s in there. I’ve had this for a little over 2 weeks and have already decided that there are things I really don’t care for. The first being the pads that come with it, you know the mechanical filtration for the overflow. It seems to get clogged up really fast, faster then I am used to. On my 75 gallon I can easily rinse out the pads about once per month. With the Red Sea Max I would probably have to change it out every 2 days. Granted, I have just started to cycle and the rock in the aquarium was not live, it was sitting outside. I threw in a rock with zoos on it along with a lot of healthy coraline algae. We will see how long coraline takes to get going.