Marine tank update

Now our small volume tank has been set up for four and a half moths, the water quality has stabilised into optimum levels of nitrate, nitrite, ammonia and pH. The reef is 'loaded' to capacity and all but one of the resident corals seem to be flourishing: several have not only grown, but reproduced. Routine maintenance is, of course, necessary, but this just involves changing five litres of water each week and daily feeds with copepods and minced fish...