Having a giggle here in snowy wales, getting the hang of you lot now! An osmolater is a water top up unit that replaces evap water with fresh straight into the sump.. a fortnight is 2 weeks , and there are 3 idols not plastic either. think, remember my tank and mags did'nt xist? as iv said the tank has only been running since april this year 02 but lots of the rock and stock came from my 7ft tank.All the softies in my tank are self sustaining, proped all of them. acropora.stylnopora, hydnopora also fragged, of which in the pics 20+ recent frags i put success down to daily iodide, strontium additions also magnesium chips in calcium reactor. levelsIE: iodine/iodide 10ppm stront 9ppm mg 1500 ppm kh 11.2 alk4+ salinity 1.024, temp 25.5 winter, 27 summer kept within +- .3 i really believe in stability in everything! Lighting 8am to 9pm with 1hr actinico3 after 8 before 9,,6 x150watt m/h 14000k's 1 x250watt6500k 2x 140 watt o3's 2x58watt o3's 4x 18watt night lights which gives me 634m2 watts squared GT s wales