I bought two fish and a alage eater friday from a pet store. The fish was fine but the alage eater was covered in ick. So I took out the filter, turned up the temp to 80 degrees and treated them with ick. Today, i got home and one of the fish i had in the tank died. I checked the nitrate level and it was DANGEROUSLY high(5.0mg/l). I put a filter back in and put the recommended amount of stress zyme in the tank to add bacteria in the tank. I dont have anything here to put in the tank to get the levels down and i live 20+ miles from the nearest store. This is the 5th day to treat for ick and the alage eater looks really good. He only has about half a dozen of white dots on him and the other fish are fine, with no infection. Did i do the right steps? I dont want anymore fish to die. Can i still treat them with the ick with the filter in? Should i add stress coat also? What should i do? HELP!?