So basically im trying to guess how much it would be for everything on a 75G saltwater tank, planning to keep SPS, im trying to go for a budget build but not too budget to the point where im going for the most cheap stuff, basically average ig. Im also wondering to keep the tank stable and healthy, how many times a month do i need to do a water change? On the costs id want to also include dosing, salt, test kits, not food tho, food wont be a problem. If someone is kind enough to list them down pls do. Im trying to get an idea on how much money id need to save. Thank you!