I Have Everything i need for a marine tank. im now i have placed the salt in the water which gives a reading of 1.023. i have bought 3 kg of live rock and i will be getting another 1kg which should fill it up, i only started the set up yesterday so how long should i wait and what else do i need. i have all the filters and carbon and heaters and astuff as i already have a 180 liter tropical tank.