Wait, you only do a partial water change? I like to do 100% when I can. Okay, only for my 6g and 20g and sometimes 40g. Those guys do not have a calcium reactor attached. My 210g I do when I feel like it every month or so maybe 10-20%
I always recommend new hobbyists do water changes weekly though. It gives them a chance to really spend time with the tank and measure and get used to how the corals adapt and just everything. You need this when you first start out to get good. No soccer player just walked onto a field at 20 years old and played pro ball without some experience. Jsut saying. Baby steps to jumping out of airplanes is not really recommended.
I always recommend new hobbyists do water changes weekly though. It gives them a chance to really spend time with the tank and measure and get used to how the corals adapt and just everything. You need this when you first start out to get good. No soccer player just walked onto a field at 20 years old and played pro ball without some experience. Jsut saying. Baby steps to jumping out of airplanes is not really recommended.