Having had a tropical setup for a while now without any probs, I want to go 'up a level' and get a marine setup. The size of tank that I'm looking at getting is around 240l. I've done loads of reading and asked a few friends, but it still isn't obvious what the best equipment to get is. Should I get a sump tank or hang on filters, or just some in-tank filters? I've been browsing the net for different products, and it looks like something like the aqua medic reef 500 will solve all my filtration problems (I'm not worried about the heating and lighting) but I'm not sure if it will be what I need. Otherwise I was thinking of getting a hang on protein skimmer and separate hang on external filter. What should I buy?
Many thanks for your help,
Flobajob

Many thanks for your help,
Flobajob