its like f.w keeping, and is very rewarding,if you understand the keeping of f.w then its not hard to learn reefs/marine plenty of reading and asking questions from people who actully keep them,
pic 10 the 2x return pumps (3500l.ph each)come up from the sump via 25mm pipes, to each corner where the enter the tank,and go straight down and along the base of the tank, to form two spraybars,which will stop any build up behind the liverock,
pic 11 the sump flowing,
, with 2x a.m multi skimmers on, dsb, live rock,cheato then to the 2x return pumps