I have a 55gal about 4.5 yrs old. I have 4x65 watt PC, LR, aqua-c remora skimmer. I only have a frogspawn, rock anemone, and a small colony of zoos. I have a black occelaris, neon goby, spotted mandarin, and a PB tang. I am interested in upsizing because my tang is growing and I would like...