hi, it seem easy to go to tropical to marine but then i noticed its not as easy as it seems. i heard its way more expensive and alot harder in difficulty to maintain, its quite off putting yeah. is it true that u use filter for flow only and that u should remove media as its no good in marine tank? its said your live rocks are the filter when tank is ready. care to share a bit more. its like a nightmare lol i should stick to tropical for life lol