>did you check water hardness before adding peat to the filter - in soft water it >may happen that the pH lowers to fast and to deep. Might be that sudden change >this was the reason of your ram dying. Carefully i would say that the rams were >sick before because one died before, one is separated because of fast breathing. > >Did they look healthy? >Did they take food? > >Thomas Hi Thomas, The hardness of my water was 13 dH. The rams appeared and acted perfectly normal this morning when I fed them. What really boggles my mind, is that they died within minutes. I noticed the first one swimming spirals. Then it started breathing infrequently and heavy, then 2 minutes later went another one, then the third. It must have been poisoning of some sort. But whatever it was, it didn't affect the other dwarfs. At least, until I left for work. Martin - -*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*- Martin Rausch Dept. Communication & Cooperation Fraunhofer Institute for Computer Graphics - -*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*- ph: +49 (6151) 155-211 fx: +49 (6151) 155-559 ml: rausch@igd.fhg.de wb: http://www.igd.fhg.de/~rausch