Hi, I've just joined this forum as I'm new to keeping fish and have encountered a problem that I need practical help with. I've had a Juwel Rekord for around 8 weeks, have followed all the advice I have been given, now have 6 danios as my first fish. However after doing a 25% water change I noticed I only had 5 fish, I hunted everywhere thinking one had leapt out etc and eventually found it wedged between the glass and the fixed filter, it was very traumatic, I thought she was dead initially, I struggled to get the blade of a knife down between the two so have no idea how she managed to get there. I had to cut all the silicon away to free the filter in order to get her out, she was lost/stuck for about 2 hours in total, I'm surprised she survived. I now have a free standing filter! Obviously I'm reluctant to re attach the filter permanently in case this happens again, although I've been told by the manufacturer that it has to be fixed to work properly. Has anyone experienced this or got any advice on how to prevent this happening again. Thank you in advance for your help.