I have a 10 gallon mixed reef tank with 2 clowns who I don't believe are or will pair. I have some Lps, mushrooms and a digitata montipora which is the only sps coral that has thrived in my tank. And cuc of course. All water paramiters are stable. Phosphates .25 or less nitrates around 25-34. I'd like to get them lower cause I think this is why I can't keep sps. but have been having a hard time. I have a big passion for coral only got the clowns for kids. I'll have to upgrade tank if I keep them but I don't even want them. Would adopting them help with nutrients? Would coral be fine if I feed them. I'd still keep clean up crew right. Is coral only tank even a thing and is this logical or am i missing something.