Tanzy,
Tks for pointing out. I'm thinking of a 3ft sump, width and height abt 18in.
The main tank is 4ft(L) x 2ft(W) x 2.5ft(H), with a 6in DSB
Hope to incorp a refugium with the sump (ambitious!) and using a submerged pump. No chiller yet, as I intend to start with Fish only then slowy upgrade the light to MH, then chiller, then can keep some corals. I'm using a MARCO brand skimmer, believed to be a venturi type. A space of 10in X 18in will be able to hold both the pump and skimmer.
Another query is that should i use the refugium area for more media, such as bio ring and stuff. which is more beneficial, a refugium or more media area?