In my 55, my fairy wrasses seemed to disapear, no carpet surfing dont know where they went and may never see them again. but if so i may replace with a tomini tang. ive watched numerous different ones. for a tang they seem less active by far. my chromis and clowns fly around faster and cover more room. i do plan to upgrade within next couple years as ill have my own place and working as an accountant so funds will enable.