I'm reading animal planet saltwater aquarium they talk about going Berlin system I'm So lost with filters hear in other thread do a DIY sump or refugium cause I want a reef tank set it up once but right sorry to repeat myself on here everyone I'm new saltwater aquarium hobby only know freshwater hobby 15 years I'm reading a lot to understand saltwater any can help ne decide who's bin in this hobby 10 29 years or more what to get or do