Hey everyone. A friend of mine just bought a 40 breeder and wants me to help him get it running. This will be his first attempt with a saltwater setup and he is on a budget. I'm thinking we should do a AIO for him but I was hoping someone here had experience with building a AIO kit for this size tank. I know Fiji Cube offers a drop in box but everywhere I see its sold out for the the 40 breeder version. If anyone has built a custom AIO kit please share and give some tips before we dive into this.