Hi all, This is my 60"x24"x24" or 150x60x60cm tank (about 142USgal, 119UKgal or 540litres). The tank was rebuilt five months ago after the chiller had let me down while I was on a holiday. When I arrived home the water temp was at 95ºF (35ºc) and I had no choice but to frag most of my colonies. The chiller has been replaced with an AC compressor with a drop-in coil since. During the process of fragging and removal of the dead corals using a flat screwdriver and a hammer, the rockscape collapsed and I almost threw the towel and called it quits!... but, as all you know this is no simple hobby... this is an addiction!... an addiction I have since the first time a friend of mine invited me to see his saltwater tank and I was green with envy and then started my first saltwater tank 200USgal circa 1990. This tank is smaller... because I now live on a 10th floor and the lifts are small! Removed everything from the tank, gave it a good cleaning, placed new rocks, new sand, new everything, my frags, a few surviving colonies and the fish. Cycling has been a nightmare (water is done but rocks take usually no less than a year). Nonetheless here is my humble reef as it looks today. The sump is a custom made simple tank with no baffles (30"x 18" x 15") Return pump: Eheim Compact+ Marine Skimmer: Tunze 9430 Calcium Reactor: Bubble Magus UV: Eheim Reeflex 800 Lighting: 6x AI Hydra52 modules. Flow: 2x Maxspect Gyre 150 Power Backup: APC Pro 1500 with Battery Pack ATO: Small tank with DIY system Cooling: 9000BTU AC compressor with drop-in coil (I am going to install a second one as backup) Old salt: (more than one year in use until end of February this year: RedSea (blue bucket - the Pro version is too rich and far from NSW parameters, I tried the pro but the non-Pro gives me better results and less algae) Carbon source: RedSea NoPox Feeding corals and fish: Fish poo and home made recipe (nori sheets, clams, salmon, shrimp, squid eggs, brine shrimp) Water changes 10% weekly This month I am in the process of changing things using some Fauna Marin products: Fauna Marin Professional Salt Reef Vitality Coral Balance Color Elements Water parameters: Calcium: must be alright. Magnesium: Just fine, the corals tell me. Alk: 7.5 - 8.0 dKh (tested every other day) Phosphate: must be close to undetectable. Nitrates: Very close to 0 (tested every 4 days) PH: Not tested. SG 1.025 Temp 77ºF (25ºC) I will be updating.