My Tank at 5th months; March 2003 (from Oct 2002) Tank: Juwel Rio 125 - about 26 US Gallon (water only) (S$ 500) Substrate: Crush Coral 3-4" depth (S$ 30) Live Rock about 33 pounds (S$ 150) Water: Filtered Seawater from LFW (S$ 0.80/gallon) Water Specs (typical): Ammonia - <0.1, Nitrite - <0.2, Nitrate - <15-25 PH - 8.3, Temp - 26-28C, Salinity - 1.021-24 Filter: Juwel Internal Filter 600l/h (wool, act carbon, sponge) Hdor Prime10 External Filter 300l/h (wool, act