I’m very new to this only ever had a beta fish. My son wanted a clown fish for his 7th birthday and didn’t know how hard it would be to maintain not just the fish but the tank and what he can add to the tank. Bought him a Evo 13.5 with some live rocks and said why not go all in. I started reading on what I could add what needs to be done daily, weekly, and monthly. Started buying upgrades (AI Prime light, nero3, heater,biomedia) and now I’m hooked on the numerous things you can add to the tank and each one is really unique. What would be the one thing you recommend to either purchase or do with me being so new to this amazing hobby? I don’t even know what to put or what a lps frags softies…..