We have had nothing but problems with our fish dying since we set up our tank. Get the water tested regularly at Animates, do a 1/4 water change every 2 weeks and put in cycle, water conditioner and Melafix. Change white filter wool when we do the water change and rinse out the carbon and blue and green filters (as per instructions in the book that came wiht the fish tank setup.) We have had 4 rasboras,(from cotton mouth-which we treated and then left a month before getting any more fish) 2 neons and a golden barb die. Couldnt see anything wrong with any of them. The only things that seem to be really good are the swordtails. Hubby is getting pissed off as its costing too much. Feel like giving up!! Any advice would be great...thankies in advance:o)